64120264 has 32 divisors (see below), whose sum is σ = 129883320. Its totient is φ = 29500416.

The previous prime is 64120261. The next prime is 64120289. The reversal of 64120264 is 46202146.

64120264 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 35497764 + 28622500 = 5958^2 + 5350^2 .

It is a super-2 number, since 2×64120264² = 8222816510859392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64120261) by changing a digit.

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, 40512 + ... + 42064.

Almost surely, 2^64120264 is an apocalyptic number.

It is an amenable number.

64120264 is an abundant number, since it is smaller than the sum of its proper divisors (65763056).

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

64120264 is a wasteful number, since it uses less digits than its factorization.

64120264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1969 (or 1965 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 64120264 is about 8007.5129722030. The cubic root of 64120264 is about 400.2503932254.

The spelling of 64120264 in words is "sixty-four million, one hundred twenty thousand, two hundred sixty-four".