64585668 has 48 divisors (see below), whose sum is σ = 178174080. Its totient is φ = 17816064.

The previous prime is 64585667. The next prime is 64585711. The reversal of 64585668 is 86658546.

It is a happy number.

It is a super-2 number, since 2×64585668² = 8342617022012448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64585667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10821 + ... + 15692.

It is an arithmetic number, because the mean of its divisors is an integer number (3711960).

Almost surely, 2^64585668 is an apocalyptic number.

It is an amenable number.

64585668 is an abundant number, since it is smaller than the sum of its proper divisors (113588412).

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

64585668 is a wasteful number, since it uses less digits than its factorization.

64585668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26556 (or 26554 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 48.

The square root of 64585668 is about 8036.5208890415. The cubic root of 64585668 is about 401.2164386095.

The spelling of 64585668 in words is "sixty-four million, five hundred eighty-five thousand, six hundred sixty-eight".