206581075712 has 36 divisors (see below), whose sum is σ = 449842036056. Its totient is φ = 93900487680.

The previous prime is 206581075699. The next prime is 206581075717. The reversal of 206581075712 is 217570185602.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206581075717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36677063 + ... + 36682694.

Almost surely, 2^206581075712 is an apocalyptic number.

206581075712 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

206581075712 is an abundant number, since it is smaller than the sum of its proper divisors (243260960344).

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

206581075712 is an equidigital number, since it uses as much as digits as its factorization.

206581075712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73359784 (or 73359770 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 44.

The spelling of 206581075712 in words is "two hundred six billion, five hundred eighty-one million, seventy-five thousand, seven hundred twelve".