108170992971 has 32 divisors (see below), whose sum is σ = 161215488000. Its totient is φ = 71681734080.

The previous prime is 108170992967. The next prime is 108170992991. The reversal of 108170992971 is 179299071801.

It is not a de Polignac number, because 108170992971 - 2² = 108170992967 is a prime.

It is not an unprimeable number, because it can be changed into a prime (108170992901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5831191 + ... + 5849711.

It is an arithmetic number, because the mean of its divisors is an integer number (5037984000).

Almost surely, 2^108170992971 is an apocalyptic number.

108170992971 is a deficient number, since it is larger than the sum of its proper divisors (53044495029).

108170992971 is a wasteful number, since it uses less digits than its factorization.

108170992971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19816 (or 19810 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 54.

The spelling of 108170992971 in words is "one hundred eight billion, one hundred seventy million, nine hundred ninety-two thousand, nine hundred seventy-one".