99747175156 has 96 divisors (see below), whose sum is σ = 192297369600. Its totient is φ = 45090380160.

The previous prime is 99747175139. The next prime is 99747175189. The reversal of 99747175156 is 65157174799.

It is a junction number, because it is equal to n+sod(n) for n = 99747175094 and 99747175103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102725751 + ... + 102726721.

It is an arithmetic number, because the mean of its divisors is an integer number (2003097600).

Almost surely, 2^99747175156 is an apocalyptic number.

It is an amenable number.

99747175156 is a deficient number, since it is larger than the sum of its proper divisors (92550194444).

99747175156 is a wasteful number, since it uses less digits than its factorization.

99747175156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1517 (or 1515 counting only the distinct ones).

The product of its digits is 16669800, while the sum is 61.

The spelling of 99747175156 in words is "ninety-nine billion, seven hundred forty-seven million, one hundred seventy-five thousand, one hundred fifty-six".