264642406260 has 24 divisors (see below), whose sum is σ = 740998737696. Its totient is φ = 70571308320.

The previous prime is 264642406229. The next prime is 264642406337. The reversal of 264642406260 is 62604246462.

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, 2205353326 + ... + 2205353445.

It is an arithmetic number, because the mean of its divisors is an integer number (30874947404).

Almost surely, 2^264642406260 is an apocalyptic number.

264642406260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264642406260 is an abundant number, since it is smaller than the sum of its proper divisors (476356331436).

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

264642406260 is a wasteful number, since it uses less digits than its factorization.

264642406260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4410706783 (or 4410706781 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 42.

The spelling of 264642406260 in words is "two hundred sixty-four billion, six hundred forty-two million, four hundred six thousand, two hundred sixty".