64512336 has 80 divisors (see below), whose sum is σ = 192451968. Its totient is φ = 18240000.

The previous prime is 64512323. The next prime is 64512337. The reversal of 64512336 is 63321546.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64512337) 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 15 ways as a sum of consecutive naturals, for example, 32986 + ... + 34886.

Almost surely, 2^64512336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64512336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96225984).

64512336 is an abundant number, since it is smaller than the sum of its proper divisors (127939632).

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

64512336 is a wasteful number, since it uses less digits than its factorization.

64512336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020 (or 2014 counting only the distinct ones).

The product of its digits is 12960, while the sum is 30.

The square root of 64512336 is about 8031.9571712006. The cubic root of 64512336 is about 401.0645310873.

The spelling of 64512336 in words is "sixty-four million, five hundred twelve thousand, three hundred thirty-six".