10646564 has 6 divisors (see below), whose sum is σ = 18631494. Its totient is φ = 5323280.

The previous prime is 10646563. The next prime is 10646579. The reversal of 10646564 is 46564601.

It can be written as a sum of positive squares in only one way, i.e., 9872164 + 774400 = 3142^2 + 880^2 .

It is a super-2 number, since 2×10646564² = 226698650012192, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10646564.

It is not an unprimeable number, because it can be changed into a prime (10646561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1330817 + ... + 1330824.

It is an arithmetic number, because the mean of its divisors is an integer number (3105249).

Almost surely, 2^10646564 is an apocalyptic number.

It is an amenable number.

10646564 is a deficient number, since it is larger than the sum of its proper divisors (7984930).

10646564 is a wasteful number, since it uses less digits than its factorization.

10646564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2661645 (or 2661643 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 10646564 is about 3262.9072925843. The cubic root of 10646564 is about 219.9901097482.

The spelling of 10646564 in words is "ten million, six hundred forty-six thousand, five hundred sixty-four".