99897206145 has 48 divisors (see below), whose sum is σ = 175800166080. Its totient is φ = 48403808640.

The previous prime is 99897206083. The next prime is 99897206153. The reversal of 99897206145 is 54160279899.

It is not a de Polignac number, because 99897206145 - 2⁶ = 99897206081 is a prime.

It is a super-2 number, since 2×99897206145² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2936091 + ... + 2969919.

It is an arithmetic number, because the mean of its divisors is an integer number (3662503460).

Almost surely, 2^99897206145 is an apocalyptic number.

It is an amenable number.

99897206145 is a deficient number, since it is larger than the sum of its proper divisors (75902959935).

99897206145 is a wasteful number, since it uses less digits than its factorization.

99897206145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35486 (or 35475 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 60.

The spelling of 99897206145 in words is "ninety-nine billion, eight hundred ninety-seven million, two hundred six thousand, one hundred forty-five".