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206601340000 = 25541117371493
BaseRepresentation
bin1100000001101001100…
…1100100010001100000
3201202021101212111120111
43000122121210101200
511341104420340000
6234524503421104
720632526262136
oct3003231442140
9652241774514
10206601340000
117a68a0856a0
123405a454794
1316636b62713
149ddcb05756
155592c91cba
hex301a664460

206601340000 has 480 divisors, whose sum is σ = 603364186656. Its totient is φ = 68751360000.

The previous prime is 206601339941. The next prime is 206601340007. The reversal of 206601340000 is 43106602.

It is a super-2 number, since 2×2066013400002 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206601340007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 138379254 + ... + 138380746.

Almost surely, 2206601340000 is an apocalyptic number.

206601340000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206601340000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (301682093328).

206601340000 is an abundant number, since it is smaller than the sum of its proper divisors (396762846656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206601340000 is a wasteful number, since it uses less digits than its factorization.

206601340000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1588 (or 1565 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 206601340000 its reverse (43106602), we get a palindrome (206644446602).

The spelling of 206601340000 in words is "two hundred six billion, six hundred one million, three hundred forty thousand".