10565668771 has 4 divisors (see below), whose sum is σ = 12075050032. Its totient is φ = 9056287512.

The previous prime is 10565668739. The next prime is 10565668777. The reversal of 10565668771 is 17786656501.

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

It is a cyclic number.

It is not a de Polignac number, because 10565668771 - 2⁵ = 10565668739 is a prime.

It is a super-2 number, since 2×10565668771² (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 (10565668777) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 754690620 + ... + 754690633.

It is an arithmetic number, because the mean of its divisors is an integer number (3018762508).

Almost surely, 2^10565668771 is an apocalyptic number.

10565668771 is a deficient number, since it is larger than the sum of its proper divisors (1509381261).

10565668771 is an equidigital number, since it uses as much as digits as its factorization.

10565668771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1509381260.

The product of its (nonzero) digits is 2116800, while the sum is 52.

The spelling of 10565668771 in words is "ten billion, five hundred sixty-five million, six hundred sixty-eight thousand, seven hundred seventy-one".