99190002158 has 32 divisors (see below), whose sum is σ = 166113763200. Its totient is φ = 44105757696.

The previous prime is 99190002157. The next prime is 99190002173. The reversal of 99190002158 is 85120009199.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99190002157) 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, 207038 + ... + 491166.

It is an arithmetic number, because the mean of its divisors is an integer number (5191055100).

Almost surely, 2^99190002158 is an apocalyptic number.

99190002158 is a deficient number, since it is larger than the sum of its proper divisors (66923761042).

99190002158 is a wasteful number, since it uses less digits than its factorization.

99190002158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284636.

The product of its (nonzero) digits is 58320, while the sum is 44.

The spelling of 99190002158 in words is "ninety-nine billion, one hundred ninety million, two thousand, one hundred fifty-eight".