264392133648 has 80 divisors (see below), whose sum is σ = 688600498176. Its totient is φ = 87410171520.

The previous prime is 264392133613. The next prime is 264392133673. The reversal of 264392133648 is 846331293462.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 264392133648.

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, 37858765 + ... + 37865747.

Almost surely, 2^264392133648 is an apocalyptic number.

It is an amenable number.

264392133648 is an abundant number, since it is smaller than the sum of its proper divisors (424208364528).

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

264392133648 is a wasteful number, since it uses less digits than its factorization.

264392133648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13332 (or 13326 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 51.

The spelling of 264392133648 in words is "two hundred sixty-four billion, three hundred ninety-two million, one hundred thirty-three thousand, six hundred forty-eight".