90966666909 has 16 divisors (see below), whose sum is σ = 129107044800. Its totient is φ = 56807093376.

The previous prime is 90966666821. The next prime is 90966666911.

90966666909 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 90966666909 - 2²⁷ = 90832449181 is a prime.

It is a super-2 number, since 2×90966666909² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 90966666909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90966666509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8960694 + ... + 8970839.

It is an arithmetic number, because the mean of its divisors is an integer number (8069190300).

Almost surely, 2^90966666909 is an apocalyptic number.

It is an amenable number.

90966666909 is a deficient number, since it is larger than the sum of its proper divisors (38140377891).

90966666909 is a wasteful number, since it uses less digits than its factorization.

90966666909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17931644.

The product of its (nonzero) digits is 51018336, while the sum is 66.

The spelling of 90966666909 in words is "ninety billion, nine hundred sixty-six million, six hundred sixty-six thousand, nine hundred nine".