10204056561556 has 192 divisors, whose sum is σ = 23006351047680. Its totient is φ = 3885991280640.

The previous prime is 10204056561499. The next prime is 10204056561593. The reversal of 10204056561556 is 65516565040201.

It is a happy number.

It is a super-2 number, since 2×10204056561556² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 241649461 + ... + 241691683.

It is an arithmetic number, because the mean of its divisors is an integer number (119824745040).

Almost surely, 2^{10204056561556} is an apocalyptic number.

It is an amenable number.

10204056561556 is an abundant number, since it is smaller than the sum of its proper divisors (12802294486124).

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

10204056561556 is a wasteful number, since it uses less digits than its factorization.

10204056561556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43154 (or 43152 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 46.

The spelling of 10204056561556 in words is "ten trillion, two hundred four billion, fifty-six million, five hundred sixty-one thousand, five hundred fifty-six".