9931165044 has 24 divisors (see below), whose sum is σ = 23499096768. Its totient is φ = 3263762880.

The previous prime is 9931165039. The next prime is 9931165091. The reversal of 9931165044 is 4405611399.

It is a junction number, because it is equal to n+sod(n) for n = 9931164987 and 9931165005.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5827297 + ... + 5829000.

It is an arithmetic number, because the mean of its divisors is an integer number (979129032).

Almost surely, 2^9931165044 is an apocalyptic number.

It is an amenable number.

9931165044 is an abundant number, since it is smaller than the sum of its proper divisors (13567931724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9931165044 is a wasteful number, since it uses less digits than its factorization.

9931165044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11656375 (or 11656373 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 9931165044 is about 99655.2308913085. The cubic root of 9931165044 is about 2149.4799567168.

The spelling of 9931165044 in words is "nine billion, nine hundred thirty-one million, one hundred sixty-five thousand, forty-four".