652966816 has 12 divisors (see below), whose sum is σ = 1285528482. Its totient is φ = 326483392.

The previous prime is 652966807. The next prime is 652966859. The reversal of 652966816 is 618669256.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 605356816 + 47610000 = 24604^2 + 6900^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 652966816.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 10202575 + ... + 10202638.

Almost surely, 2^652966816 is an apocalyptic number.

It is an amenable number.

652966816 is a deficient number, since it is larger than the sum of its proper divisors (632561666).

652966816 is a wasteful number, since it uses less digits than its factorization.

652966816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20405223 (or 20405215 counting only the distinct ones).

The product of its digits is 933120, while the sum is 49.

The square root of 652966816 is about 25553.2153749778. The cubic root of 652966816 is about 867.5550396248. Note that the first 3 decimals are identical.

The spelling of 652966816 in words is "six hundred fifty-two million, nine hundred sixty-six thousand, eight hundred sixteen".