64164694 has 32 divisors (see below), whose sum is σ = 107868672. Its totient is φ = 28380000.

The previous prime is 64164649. The next prime is 64164719. The reversal of 64164694 is 49646146.

It is a super-2 number, since 2×64164694² = 8234215912227272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148659 + ... + 149089.

It is an arithmetic number, because the mean of its divisors is an integer number (3370896).

Almost surely, 2^64164694 is an apocalyptic number.

64164694 is a deficient number, since it is larger than the sum of its proper divisors (43703978).

64164694 is a wasteful number, since it uses less digits than its factorization.

64164694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612.

The product of its digits is 124416, while the sum is 40.

The square root of 64164694 is about 8010.2867614087. The cubic root of 64164694 is about 400.3428186046.

The spelling of 64164694 in words is "sixty-four million, one hundred sixty-four thousand, six hundred ninety-four".