206555213152 has 96 divisors (see below), whose sum is σ = 467859732480. Its totient is φ = 89115863040.

The previous prime is 206555213147. The next prime is 206555213159. The reversal of 206555213152 is 251312555602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206555213159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1908 + ... + 642739.

It is an arithmetic number, because the mean of its divisors is an integer number (4873538880).

Almost surely, 2^206555213152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206555213152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233929866240).

206555213152 is an abundant number, since it is smaller than the sum of its proper divisors (261304519328).

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

206555213152 is a wasteful number, since it uses less digits than its factorization.

206555213152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644724 (or 644716 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 37.

Adding to 206555213152 its reverse (251312555602), we get a palindrome (457867768754).

The spelling of 206555213152 in words is "two hundred six billion, five hundred fifty-five million, two hundred thirteen thousand, one hundred fifty-two".