65457684320 has 96 divisors (see below), whose sum is σ = 186037689600. Its totient is φ = 21261436416.

The previous prime is 65457684319. The next prime is 65457684401. The reversal of 65457684320 is 2348675456.

It is a happy number.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 1516730 + ... + 1559289.

It is an arithmetic number, because the mean of its divisors is an integer number (1937892600).

Almost surely, 2^65457684320 is an apocalyptic number.

It is an amenable number.

65457684320 is an abundant number, since it is smaller than the sum of its proper divisors (120580005280).

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

65457684320 is a wasteful number, since it uses less digits than its factorization.

65457684320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3076060 (or 3076052 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 50.

The spelling of 65457684320 in words is "sixty-five billion, four hundred fifty-seven million, six hundred eighty-four thousand, three hundred twenty".