65214664 has 16 divisors (see below), whose sum is σ = 122723100. Its totient is φ = 32488512.

The previous prime is 65214659. The next prime is 65214679. The reversal of 65214664 is 46641256.

It can be written as a sum of positive squares in 2 ways, for example, as 64802500 + 412164 = 8050^2 + 642^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12499 + ... + 16930.

Almost surely, 2^65214664 is an apocalyptic number.

It is an amenable number.

65214664 is a deficient number, since it is larger than the sum of its proper divisors (57508436).

65214664 is a wasteful number, since it uses less digits than its factorization.

65214664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29712 (or 29708 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 65214664 is about 8075.5596710073. The cubic root of 65214664 is about 402.5147074857.

The spelling of 65214664 in words is "sixty-five million, two hundred fourteen thousand, six hundred sixty-four".