26625661656 has 64 divisors (see below), whose sum is σ = 75119443200. Its totient is φ = 7790160000.

The previous prime is 26625661637. The next prime is 26625661661. The reversal of 26625661656 is 65616652662.

It is a junction number, because it is equal to n+sod(n) for n = 26625661599 and 26625661608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1731220 + ... + 1746531.

It is an arithmetic number, because the mean of its divisors is an integer number (1173741300).

Almost surely, 2^26625661656 is an apocalyptic number.

It is an amenable number.

26625661656 is an abundant number, since it is smaller than the sum of its proper divisors (48493781544).

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

26625661656 is a wasteful number, since it uses less digits than its factorization.

26625661656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3477800 (or 3477796 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 51.

The spelling of 26625661656 in words is "twenty-six billion, six hundred twenty-five million, six hundred sixty-one thousand, six hundred fifty-six".