10561816 has 16 divisors (see below), whose sum is σ = 19900440. Its totient is φ = 5255040.

The previous prime is 10561799. The next prime is 10561841. The reversal of 10561816 is 61816501.

It is a super-2 number, since 2×10561816² = 223103914435712, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a nialpdrome in base 15.

It is a congruent number.

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, 1441 + ... + 4816.

Almost surely, 2^10561816 is an apocalyptic number.

It is an amenable number.

10561816 is a deficient number, since it is larger than the sum of its proper divisors (9338624).

10561816 is a wasteful number, since it uses less digits than its factorization.

10561816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6474 (or 6470 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 10561816 is about 3249.8947675271. The cubic root of 10561816 is about 219.4048376501.

The spelling of 10561816 in words is "ten million, five hundred sixty-one thousand, eight hundred sixteen".