64466880 has 56 divisors (see below), whose sum is σ = 204685392. Its totient is φ = 17190912.

The previous prime is 64466863. The next prime is 64466891. The reversal of 64466880 is 8866446.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32617 + ... + 34536.

Almost surely, 2^64466880 is an apocalyptic number.

64466880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64466880 is an abundant number, since it is smaller than the sum of its proper divisors (140218512).

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

64466880 is a wasteful number, since it uses less digits than its factorization.

64466880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67173 (or 67163 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

The square root of 64466880 is about 8029.1269762036. The cubic root of 64466880 is about 400.9703110048.

The spelling of 64466880 in words is "sixty-four million, four hundred sixty-six thousand, eight hundred eighty".