65857800324 has 12 divisors (see below), whose sum is σ = 153668200784. Its totient is φ = 21952600104.

The previous prime is 65857800311. The next prime is 65857800341. The reversal of 65857800324 is 42300875856.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2744075002 + ... + 2744075025.

Almost surely, 2^65857800324 is an apocalyptic number.

It is an amenable number.

65857800324 is an abundant number, since it is smaller than the sum of its proper divisors (87810400460).

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

65857800324 is a wasteful number, since it uses less digits than its factorization.

65857800324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5488150034 (or 5488150032 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 48.

The spelling of 65857800324 in words is "sixty-five billion, eight hundred fifty-seven million, eight hundred thousand, three hundred twenty-four".