10563666 has 16 divisors (see below), whose sum is σ = 21161088. Its totient is φ = 3515600.

The previous prime is 10563661. The next prime is 10563667. The reversal of 10563666 is 66636501.

It is a super-2 number, since 2×10563666² = 223182078719112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10563661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4711 + ... + 6581.

It is an arithmetic number, because the mean of its divisors is an integer number (1322568).

Almost surely, 2^10563666 is an apocalyptic number.

10563666 is an abundant number, since it is smaller than the sum of its proper divisors (10597422).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10563666 is a wasteful number, since it uses less digits than its factorization.

10563666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2817.

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 10563666 is about 3250.1793796651. The cubic root of 10563666 is about 219.4176471661.

The spelling of 10563666 in words is "ten million, five hundred sixty-three thousand, six hundred sixty-six".