9990110165 has 16 divisors (see below), whose sum is σ = 13702521600. Its totient is φ = 6849461760.

The previous prime is 9990110161. The next prime is 9990110171. The reversal of 9990110165 is 5610110999.

It is not a de Polignac number, because 9990110165 - 2² = 9990110161 is a prime.

It is a super-2 number, since 2×9990110165² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9990110161) 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, 358661 + ... + 385509.

It is an arithmetic number, because the mean of its divisors is an integer number (856407600).

Almost surely, 2^9990110165 is an apocalyptic number.

It is an amenable number.

9990110165 is a deficient number, since it is larger than the sum of its proper divisors (3712411435).

9990110165 is a wasteful number, since it uses less digits than its factorization.

9990110165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37492.

The product of its (nonzero) digits is 21870, while the sum is 41.

The square root of 9990110165 is about 99950.5385928460. The cubic root of 9990110165 is about 2153.7242223133.

The spelling of 9990110165 in words is "nine billion, nine hundred ninety million, one hundred ten thousand, one hundred sixty-five".