99216352871957 has 2 divisors, whose sum is σ = 99216352871958. Its totient is φ = 99216352871956.

The previous prime is 99216352871929. The next prime is 99216352872001. The reversal of 99216352871957 is 75917825361299.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86292320681956 + 12924032190001 = 9289366^2 + 3595001^2 .

It is a cyclic number.

It is not a de Polignac number, because 99216352871957 - 2¹⁰ = 99216352870933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99216352871927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49608176435978 + 49608176435979.

It is an arithmetic number, because the mean of its divisors is an integer number (49608176435979).

Almost surely, 2^{99216352871957} is an apocalyptic number.

It is an amenable number.

99216352871957 is a deficient number, since it is larger than the sum of its proper divisors (1).

99216352871957 is an equidigital number, since it uses as much as digits as its factorization.

99216352871957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 514382400, while the sum is 74.

The spelling of 99216352871957 in words is "ninety-nine trillion, two hundred sixteen billion, three hundred fifty-two million, eight hundred seventy-one thousand, nine hundred fifty-seven".