64665164 has 6 divisors (see below), whose sum is σ = 113164044. Its totient is φ = 32332580.

The previous prime is 64665131. The next prime is 64665173. The reversal of 64665164 is 46156646.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8083142 + ... + 8083149.

It is an arithmetic number, because the mean of its divisors is an integer number (18860674).

Almost surely, 2^64665164 is an apocalyptic number.

It is an amenable number.

64665164 is a deficient number, since it is larger than the sum of its proper divisors (48498880).

64665164 is a wasteful number, since it uses less digits than its factorization.

64665164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16166295 (or 16166293 counting only the distinct ones).

The product of its digits is 103680, while the sum is 38.

The square root of 64665164 is about 8041.4652893611. The cubic root of 64665164 is about 401.3809850472.

The spelling of 64665164 in words is "sixty-four million, six hundred sixty-five thousand, one hundred sixty-four".