99331129966 has 32 divisors (see below), whose sum is σ = 153595854720. Its totient is φ = 48157467744.

The previous prime is 99331129943. The next prime is 99331129979. The reversal of 99331129966 is 66992113399.

It is a super-2 number, since 2×99331129966² (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 99331129966.

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, 6289656 + ... + 6305428.

It is an arithmetic number, because the mean of its divisors is an integer number (4799870460).

Almost surely, 2^99331129966 is an apocalyptic number.

99331129966 is a deficient number, since it is larger than the sum of its proper divisors (54264724754).

99331129966 is a wasteful number, since it uses less digits than its factorization.

99331129966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16560.

The product of its digits is 4251528, while the sum is 58.

The spelling of 99331129966 in words is "ninety-nine billion, three hundred thirty-one million, one hundred twenty-nine thousand, nine hundred sixty-six".