99715088128 has 36 divisors (see below), whose sum is σ = 199103550408. Its totient is φ = 49841792000.

The previous prime is 99715088119. The next prime is 99715088159. The reversal of 99715088128 is 82188051799.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 772350 + ... + 892162.

It is an arithmetic number, because the mean of its divisors is an integer number (5530654178).

Almost surely, 2^99715088128 is an apocalyptic number.

It is an amenable number.

99715088128 is a deficient number, since it is larger than the sum of its proper divisors (99388462280).

99715088128 is a wasteful number, since it uses less digits than its factorization.

99715088128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123080 (or 123066 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 58.

The spelling of 99715088128 in words is "ninety-nine billion, seven hundred fifteen million, eighty-eight thousand, one hundred twenty-eight".