64965504 has 32 divisors (see below), whose sum is σ = 172565640. Its totient is φ = 21655040.

The previous prime is 64965493. The next prime is 64965521. The reversal of 64965504 is 40556946.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84207 + ... + 84974.

Almost surely, 2^64965504 is an apocalyptic number.

64965504 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

64965504 is an abundant number, since it is smaller than the sum of its proper divisors (107600136).

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

64965504 is a wasteful number, since it uses less digits than its factorization.

64965504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169198 (or 169186 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 64965504 is about 8060.1181132785. The cubic root of 64965504 is about 402.0014356029.

The spelling of 64965504 in words is "sixty-four million, nine hundred sixty-five thousand, five hundred four".