64472516 has 12 divisors (see below), whose sum is σ = 112914732. Its totient is φ = 32211168.

The previous prime is 64472503. The next prime is 64472533. The reversal of 64472516 is 61527446.

It can be written as a sum of positive squares in 2 ways, for example, as 59228416 + 5244100 = 7696^2 + 2290^2 .

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, 266 + ... + 11358.

It is an arithmetic number, because the mean of its divisors is an integer number (9409561).

Almost surely, 2^64472516 is an apocalyptic number.

It is an amenable number.

64472516 is a deficient number, since it is larger than the sum of its proper divisors (48442216).

64472516 is a wasteful number, since it uses less digits than its factorization.

64472516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12550 (or 12548 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 64472516 is about 8029.4779406883. The cubic root of 64472516 is about 400.9819955723.

The spelling of 64472516 in words is "sixty-four million, four hundred seventy-two thousand, five hundred sixteen".