64966164 has 12 divisors (see below), whose sum is σ = 151587744. Its totient is φ = 21655384.

The previous prime is 64966157. The next prime is 64966183. The reversal of 64966164 is 46166946.

It is a tau number, because it is divible by the number of its divisors (12).

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, 2706912 + ... + 2706935.

It is an arithmetic number, because the mean of its divisors is an integer number (12632312).

Almost surely, 2^64966164 is an apocalyptic number.

It is an amenable number.

64966164 is an abundant number, since it is smaller than the sum of its proper divisors (86621580).

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

64966164 is a wasteful number, since it uses less digits than its factorization.

64966164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5413854 (or 5413852 counting only the distinct ones).

The product of its digits is 186624, while the sum is 42.

The square root of 64966164 is about 8060.1590555026. The cubic root of 64966164 is about 402.0027969410.

The spelling of 64966164 in words is "sixty-four million, nine hundred sixty-six thousand, one hundred sixty-four".