26043221602656 has 108 divisors (see below), whose sum is σ = 78163481630052. Its totient is φ = 8224175210112.

The previous prime is 26043221602633. The next prime is 26043221602709. The reversal of 26043221602656 is 65620612234062.

26043221602656 is a `hidden beast` number, since 2 + 6 + 0 + 4 + 32 + 2 + 1 + 602 + 6 + 5 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 125142366 + ... + 125350301.

It is an arithmetic number, because the mean of its divisors is an integer number (723735941019).

Almost surely, 2^{26043221602656} is an apocalyptic number.

It is an amenable number.

26043221602656 is an abundant number, since it is smaller than the sum of its proper divisors (52120260027396).

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

26043221602656 is a wasteful number, since it uses less digits than its factorization.

26043221602656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250492721 (or 250492691 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

The spelling of 26043221602656 in words is "twenty-six trillion, forty-three billion, two hundred twenty-one million, six hundred two thousand, six hundred fifty-six".