26664626244 has 12 divisors (see below), whose sum is σ = 62217461264. Its totient is φ = 8888208744.

The previous prime is 26664626221. The next prime is 26664626251. The reversal of 26664626244 is 44262646662.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×26664626244² (a number of 22 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 26664626193 and 26664626202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1111026082 + ... + 1111026105.

Almost surely, 2^26664626244 is an apocalyptic number.

It is an amenable number.

26664626244 is an abundant number, since it is smaller than the sum of its proper divisors (35552835020).

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

26664626244 is a wasteful number, since it uses less digits than its factorization.

26664626244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222052194 (or 2222052192 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 48.

The spelling of 26664626244 in words is "twenty-six billion, six hundred sixty-four million, six hundred twenty-six thousand, two hundred forty-four".