99161712 has 80 divisors (see below), whose sum is σ = 306542880. Its totient is φ = 30509568.

The previous prime is 99161693. The next prime is 99161729. The reversal of 99161712 is 21716199.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3213 + ... + 14444.

It is an arithmetic number, because the mean of its divisors is an integer number (3831786).

Almost surely, 2^99161712 is an apocalyptic number.

It is an amenable number.

99161712 is an abundant number, since it is smaller than the sum of its proper divisors (207381168).

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

99161712 is a wasteful number, since it uses less digits than its factorization.

99161712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17687 (or 17675 counting only the distinct ones).

The product of its digits is 6804, while the sum is 36.

The square root of 99161712 is about 9957.9973890336. The cubic root of 99161712 is about 462.8582461271.

It can be divided in two parts, 9916 and 1712, that added together give a triangular number (11628 = T₁₅₂).

The spelling of 99161712 in words is "ninety-nine million, one hundred sixty-one thousand, seven hundred twelve".