64021164 has 24 divisors (see below), whose sum is σ = 150925488. Its totient is φ = 21120000.

The previous prime is 64021129. The next prime is 64021187. The reversal of 64021164 is 46112046.

64021164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

64021164 is a modest number, since divided by 21164 gives 64 as remainder.

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 7 ways as a sum of consecutive naturals, for example, 26337 + ... + 28664.

It is an arithmetic number, because the mean of its divisors is an integer number (6288562).

Almost surely, 2^64021164 is an apocalyptic number.

It is an amenable number.

64021164 is an abundant number, since it is smaller than the sum of its proper divisors (86904324).

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

64021164 is a wasteful number, since it uses less digits than its factorization.

64021164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55105 (or 55103 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 64021164 is about 8001.3226406639. The cubic root of 64021164 is about 400.0440868074.

The spelling of 64021164 in words is "sixty-four million, twenty-one thousand, one hundred sixty-four".