10565715670561 has 4 divisors (see below), whose sum is σ = 10615790152624. Its totient is φ = 10515641188500.

The previous prime is 10565715670553. The next prime is 10565715670621. The reversal of 10565715670561 is 16507651756501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10565715670561 - 2³ = 10565715670553 is a prime.

It is a super-2 number, since 2×10565715670561² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10565715670511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25037240715 + ... + 25037241136.

It is an arithmetic number, because the mean of its divisors is an integer number (2653947538156).

Almost surely, 2^{10565715670561} is an apocalyptic number.

It is an amenable number.

10565715670561 is a deficient number, since it is larger than the sum of its proper divisors (50074482063).

10565715670561 is an equidigital number, since it uses as much as digits as its factorization.

10565715670561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50074482062.

The product of its (nonzero) digits is 6615000, while the sum is 55.

The spelling of 10565715670561 in words is "ten trillion, five hundred sixty-five billion, seven hundred fifteen million, six hundred seventy thousand, five hundred sixty-one".