64164951 has 6 divisors (see below), whose sum is σ = 92682720. Its totient is φ = 42776628.

The previous prime is 64164943. The next prime is 64164967. The reversal of 64164951 is 15946146.

64164951 is a `hidden beast` number, since 6 + 4 + 1 + 649 + 5 + 1 = 666.

It is not a de Polignac number, because 64164951 - 2³ = 64164943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64164151) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3564711 + ... + 3564728.

It is an arithmetic number, because the mean of its divisors is an integer number (15447120).

Almost surely, 2^64164951 is an apocalyptic number.

64164951 is a deficient number, since it is larger than the sum of its proper divisors (28517769).

64164951 is a wasteful number, since it uses less digits than its factorization.

64164951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7129445 (or 7129442 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 64164951 is about 8010.3028032653. The cubic root of 64164951 is about 400.3433531040.

The spelling of 64164951 in words is "sixty-four million, one hundred sixty-four thousand, nine hundred fifty-one".