205448010656 has 48 divisors (see below), whose sum is σ = 471691886400. Its totient is φ = 88049142720.

The previous prime is 205448010637. The next prime is 205448010661. The reversal of 205448010656 is 656010844502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9347990 + ... + 9369941.

It is an arithmetic number, because the mean of its divisors is an integer number (9826914300).

Almost surely, 2^205448010656 is an apocalyptic number.

It is an amenable number.

205448010656 is an abundant number, since it is smaller than the sum of its proper divisors (266243875744).

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

205448010656 is an equidigital number, since it uses as much as digits as its factorization.

205448010656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18717962 (or 18717940 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 41.

The spelling of 205448010656 in words is "two hundred five billion, four hundred forty-eight million, ten thousand, six hundred fifty-six".