64995330 has 16 divisors (see below), whose sum is σ = 155988864. Its totient is φ = 17332080.

The previous prime is 64995323. The next prime is 64995349. The reversal of 64995330 is 3359946.

It is a Curzon 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, 1083226 + ... + 1083285.

It is an arithmetic number, because the mean of its divisors is an integer number (9749304).

Almost surely, 2^64995330 is an apocalyptic number.

64995330 is an abundant number, since it is smaller than the sum of its proper divisors (90993534).

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

64995330 is a wasteful number, since it uses less digits than its factorization.

64995330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2166521.

The product of its (nonzero) digits is 87480, while the sum is 39.

The square root of 64995330 is about 8061.9681219911. The cubic root of 64995330 is about 402.0629465056.

The spelling of 64995330 in words is "sixty-four million, nine hundred ninety-five thousand, three hundred thirty".