64485664 has 12 divisors (see below), whose sum is σ = 126956214. Its totient is φ = 32242816.

The previous prime is 64485653. The next prime is 64485671. The reversal of 64485664 is 46658446.

It can be written as a sum of positive squares in only one way, i.e., 47610000 + 16875664 = 6900^2 + 4108^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 64485664.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1007557 + ... + 1007620.

Almost surely, 2^64485664 is an apocalyptic number.

It is an amenable number.

64485664 is a deficient number, since it is larger than the sum of its proper divisors (62470550).

64485664 is a wasteful number, since it uses less digits than its factorization.

64485664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2015187 (or 2015179 counting only the distinct ones).

The product of its digits is 552960, while the sum is 43.

The square root of 64485664 is about 8030.2966321301. The cubic root of 64485664 is about 401.0092513874.

The spelling of 64485664 in words is "sixty-four million, four hundred eighty-five thousand, six hundred sixty-four".