10656500566 has 4 divisors (see below), whose sum is σ = 15984750852. Its totient is φ = 5328250282.

The previous prime is 10656500551. The next prime is 10656500593. The reversal of 10656500566 is 66500565601.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×10656500566² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2664125140 + ... + 2664125143.

It is an arithmetic number, because the mean of its divisors is an integer number (3996187713).

Almost surely, 2^10656500566 is an apocalyptic number.

10656500566 is a deficient number, since it is larger than the sum of its proper divisors (5328250286).

10656500566 is an equidigital number, since it uses as much as digits as its factorization.

10656500566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5328250285.

The product of its (nonzero) digits is 162000, while the sum is 40.

The spelling of 10656500566 in words is "ten billion, six hundred fifty-six million, five hundred thousand, five hundred sixty-six".