64766165 has 16 divisors (see below), whose sum is σ = 79052160. Its totient is φ = 50932800.

The previous prime is 64766123. The next prime is 64766171. The reversal of 64766165 is 56166746.

64766165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64766165 - 2²⁴ = 47988949 is a prime.

It is a super-2 number, since 2×64766165² = 8389312257614450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81902 + ... + 82688.

It is an arithmetic number, because the mean of its divisors is an integer number (4940760).

Almost surely, 2^64766165 is an apocalyptic number.

It is an amenable number.

64766165 is a deficient number, since it is larger than the sum of its proper divisors (14285995).

64766165 is a wasteful number, since it uses less digits than its factorization.

64766165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052.

The product of its digits is 181440, while the sum is 41.

The square root of 64766165 is about 8047.7428512596. The cubic root of 64766165 is about 401.5898496566.

The spelling of 64766165 in words is "sixty-four million, seven hundred sixty-six thousand, one hundred sixty-five".