99680914171 has 4 divisors (see below), whose sum is σ = 99682153632. Its totient is φ = 99679674712.

The previous prime is 99680914163. The next prime is 99680914189. The reversal of 99680914171 is 17141908699.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 99680914171 - 2³ = 99680914163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99680914141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 490051 + ... + 662956.

It is an arithmetic number, because the mean of its divisors is an integer number (24920538408).

Almost surely, 2^99680914171 is an apocalyptic number.

99680914171 is a deficient number, since it is larger than the sum of its proper divisors (1239461).

99680914171 is a wasteful number, since it uses less digits than its factorization.

99680914171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239460.

The product of its (nonzero) digits is 979776, while the sum is 55.

The spelling of 99680914171 in words is "ninety-nine billion, six hundred eighty million, nine hundred fourteen thousand, one hundred seventy-one".