99671165 has 16 divisors (see below), whose sum is σ = 131155200. Its totient is φ = 72112320.

The previous prime is 99671129. The next prime is 99671171. The reversal of 99671165 is 56117699.

It is a happy number.

It is not a de Polignac number, because 99671165 - 2¹⁰ = 99670141 is a prime.

It is a super-2 number, since 2×99671165² = 19868682264914450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6236 + ... + 15434.

It is an arithmetic number, because the mean of its divisors is an integer number (8197200).

Almost surely, 2^99671165 is an apocalyptic number.

It is an amenable number.

99671165 is a deficient number, since it is larger than the sum of its proper divisors (31484035).

99671165 is a wasteful number, since it uses less digits than its factorization.

99671165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9412.

The product of its digits is 102060, while the sum is 44.

The square root of 99671165 is about 9983.5447111735. The cubic root of 99671165 is about 463.6495523784.

The spelling of 99671165 in words is "ninety-nine million, six hundred seventy-one thousand, one hundred sixty-five".