172990516195 has 16 divisors (see below), whose sum is σ = 237555926208. Its totient is φ = 118466173440.

The previous prime is 172990516109. The next prime is 172990516213. The reversal of 172990516195 is 591615099271.

It is not a de Polignac number, because 172990516195 - 2²⁷ = 172856298467 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3220794 + ... + 3274063.

It is an arithmetic number, because the mean of its divisors is an integer number (14847245388).

Almost surely, 2^172990516195 is an apocalyptic number.

172990516195 is a deficient number, since it is larger than the sum of its proper divisors (64565410013).

172990516195 is an equidigital number, since it uses as much as digits as its factorization.

172990516195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6495630.

The product of its (nonzero) digits is 1530900, while the sum is 55.

The spelling of 172990516195 in words is "one hundred seventy-two billion, nine hundred ninety million, five hundred sixteen thousand, one hundred ninety-five".