10566100561 has 8 divisors (see below), whose sum is σ = 10595482560. Its totient is φ = 10536748368.

The previous prime is 10566100549. The next prime is 10566100577. The reversal of 10566100561 is 16500166501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10566100561 is a prime.

It is a super-2 number, since 2×10566100561² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10566100541) 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, 829140 + ... + 841786.

It is an arithmetic number, because the mean of its divisors is an integer number (1324435320).

Almost surely, 2^10566100561 is an apocalyptic number.

It is an amenable number.

10566100561 is a deficient number, since it is larger than the sum of its proper divisors (29381999).

10566100561 is a wasteful number, since it uses less digits than its factorization.

10566100561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14903.

The product of its (nonzero) digits is 5400, while the sum is 31.

The spelling of 10566100561 in words is "ten billion, five hundred sixty-six million, one hundred thousand, five hundred sixty-one".