99317070797055 has 16 divisors (see below), whose sum is σ = 159387395800704. Its totient is φ = 52809076916640.

The previous prime is 99317070797053. The next prime is 99317070797093. The reversal of 99317070797055 is 55079707071399.

It is not a de Polignac number, because 99317070797055 - 2¹ = 99317070797053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99317070797053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10001714149 + ... + 10001724078.

It is an arithmetic number, because the mean of its divisors is an integer number (9961712237544).

Almost surely, 2^{99317070797055} is an apocalyptic number.

99317070797055 is a deficient number, since it is larger than the sum of its proper divisors (60070325003649).

99317070797055 is a wasteful number, since it uses less digits than its factorization.

99317070797055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20003438566.

The product of its (nonzero) digits is 131274675, while the sum is 69.

The spelling of 99317070797055 in words is "ninety-nine trillion, three hundred seventeen billion, seventy million, seven hundred ninety-seven thousand, fifty-five".