65020664 has 16 divisors (see below), whose sum is σ = 123631920. Its totient is φ = 32052160.

The previous prime is 65020651. The next prime is 65020691. The reversal of 65020664 is 46602056.

It is a congruent number.

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, 56669 + ... + 57804.

It is an arithmetic number, because the mean of its divisors is an integer number (7726995).

Almost surely, 2^65020664 is an apocalyptic number.

It is an amenable number.

65020664 is a deficient number, since it is larger than the sum of its proper divisors (58611256).

65020664 is a wasteful number, since it uses less digits than its factorization.

65020664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114550 (or 114546 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 65020664 is about 8063.5391733407. The cubic root of 65020664 is about 402.1151786662.

The spelling of 65020664 in words is "sixty-five million, twenty thousand, six hundred sixty-four".