264332261231604 has 18 divisors (see below), whose sum is σ = 668173215891090. Its totient is φ = 88110753743856.

The previous prime is 264332261231569. The next prime is 264332261231611. The reversal of 264332261231604 is 406132162233462.

264332261231604 is a `hidden beast` number, since 2 + 6 + 4 + 3 + 3 + 2 + 2 + 6 + 1 + 2 + 31 + 604 = 666.

It can be written as a sum of positive squares in only one way, i.e., 204444814496400 + 59887446735204 = 14298420^2 + 7738698^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 264332261231604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3671281405959 + ... + 3671281406030.

Almost surely, 2^{264332261231604} is an apocalyptic number.

It is an amenable number.

264332261231604 is an abundant number, since it is smaller than the sum of its proper divisors (403840954659486).

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

264332261231604 is a wasteful number, since it uses less digits than its factorization.

264332261231604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7342562811999 (or 7342562811994 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 45.

The spelling of 264332261231604 in words is "two hundred sixty-four trillion, three hundred thirty-two billion, two hundred sixty-one million, two hundred thirty-one thousand, six hundred four".