10665156665 has 16 divisors (see below), whose sum is σ = 13481838720. Its totient is φ = 8077029120.

The previous prime is 10665156659. The next prime is 10665156673. The reversal of 10665156665 is 56665156601.

10665156665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10665156665 - 2²⁴ = 10648379449 is a prime.

It is a super-2 number, since 2×10665156665² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88052 + ... + 170538.

It is an arithmetic number, because the mean of its divisors is an integer number (842614920).

Almost surely, 2^10665156665 is an apocalyptic number.

It is an amenable number.

10665156665 is a deficient number, since it is larger than the sum of its proper divisors (2816682055).

10665156665 is a wasteful number, since it uses less digits than its factorization.

10665156665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83872.

The product of its (nonzero) digits is 972000, while the sum is 47.

The spelling of 10665156665 in words is "ten billion, six hundred sixty-five million, one hundred fifty-six thousand, six hundred sixty-five".