64516464 has 30 divisors (see below), whose sum is σ = 180556896. Its totient is φ = 21505440.

The previous prime is 64516453. The next prime is 64516471. The reversal of 64516464 is 46461546.

64516464 is a `hidden beast` number, since 6 + 4 + 5 + 1 + 646 + 4 = 666.

64516464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 223872 + ... + 224159.

Almost surely, 2^64516464 is an apocalyptic number.

It is an amenable number.

64516464 is an abundant number, since it is smaller than the sum of its proper divisors (116040432).

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

64516464 is a wasteful number, since it uses less digits than its factorization.

64516464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448045 (or 448036 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 64516464 is about 8032.2141405717. The cubic root of 64516464 is about 401.0730853121.

It can be divided in two parts, 64516 and 464, that added together give a triangular number (64980 = T₃₆₀).

The spelling of 64516464 in words is "sixty-four million, five hundred sixteen thousand, four hundred sixty-four".