26465656660 has 24 divisors (see below), whose sum is σ = 57370715136. Its totient is φ = 10244770080.

The previous prime is 26465656571. The next prime is 26465656673. The reversal of 26465656660 is 6665656462.

It is a junction number, because it is equal to n+sod(n) for n = 26465656598 and 26465656607.

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, 21342652 + ... + 21343891.

It is an arithmetic number, because the mean of its divisors is an integer number (2390446464).

Almost surely, 2^26465656660 is an apocalyptic number.

26465656660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26465656660 is an abundant number, since it is smaller than the sum of its proper divisors (30905058476).

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

26465656660 is a wasteful number, since it uses less digits than its factorization.

26465656660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42686583 (or 42686581 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 52.

The spelling of 26465656660 in words is "twenty-six billion, four hundred sixty-five million, six hundred fifty-six thousand, six hundred sixty".