26566502456 has 32 divisors (see below), whose sum is σ = 53678856000. Its totient is φ = 12253472640.

The previous prime is 26566502441. The next prime is 26566502467. The reversal of 26566502456 is 65420566562.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 26566502456.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78641 + ... + 243551.

It is an arithmetic number, because the mean of its divisors is an integer number (1677464250).

Almost surely, 2^26566502456 is an apocalyptic number.

26566502456 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

26566502456 is an abundant number, since it is smaller than the sum of its proper divisors (27112353544).

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

26566502456 is a wasteful number, since it uses less digits than its factorization.

26566502456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166479 (or 166475 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 47.

The spelling of 26566502456 in words is "twenty-six billion, five hundred sixty-six million, five hundred two thousand, four hundred fifty-six".