64664076 has 12 divisors (see below), whose sum is σ = 150882872. Its totient is φ = 21554688.

The previous prime is 64664029. The next prime is 64664099. The reversal of 64664076 is 67046646.

64664076 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 2694325 + ... + 2694348.

Almost surely, 2^64664076 is an apocalyptic number.

It is an amenable number.

64664076 is an abundant number, since it is smaller than the sum of its proper divisors (86218796).

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

64664076 is a wasteful number, since it uses less digits than its factorization.

64664076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5388680 (or 5388678 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 39.

The square root of 64664076 is about 8041.3976397141. The cubic root of 64664076 is about 401.3787339384.

The spelling of 64664076 in words is "sixty-four million, six hundred sixty-four thousand, seventy-six".