64136464 has 40 divisors (see below), whose sum is σ = 145490688. Its totient is φ = 26814720.

The previous prime is 64136459. The next prime is 64136467. The reversal of 64136464 is 46463146.

It is a super-2 number, since 2×64136464² = 8226972028846592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64136467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2392 + ... + 11575.

Almost surely, 2^64136464 is an apocalyptic number.

It is an amenable number.

64136464 is an abundant number, since it is smaller than the sum of its proper divisors (81354224).

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

64136464 is a wasteful number, since it uses less digits than its factorization.

64136464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14023 (or 14017 counting only the distinct ones).

The product of its digits is 41472, while the sum is 34.

The square root of 64136464 is about 8008.5244583506. The cubic root of 64136464 is about 400.2840981728.

The spelling of 64136464 in words is "sixty-four million, one hundred thirty-six thousand, four hundred sixty-four".