10890085565 has 16 divisors (see below), whose sum is σ = 13123588800. Its totient is φ = 8675154432.

The previous prime is 10890085559. The next prime is 10890085621. The reversal of 10890085565 is 56558009801.

It is a cyclic number.

It is not a de Polignac number, because 10890085565 - 2⁸ = 10890085309 is a prime.

It is a super-2 number, since 2×10890085565² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1271066 + ... + 1279604.

It is an arithmetic number, because the mean of its divisors is an integer number (820224300).

Almost surely, 2^10890085565 is an apocalyptic number.

It is an amenable number.

10890085565 is a deficient number, since it is larger than the sum of its proper divisors (2233503235).

10890085565 is an equidigital number, since it uses as much as digits as its factorization.

10890085565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9596.

The product of its (nonzero) digits is 432000, while the sum is 47.

The spelling of 10890085565 in words is "ten billion, eight hundred ninety million, eighty-five thousand, five hundred sixty-five".