172233915906 has 32 divisors (see below), whose sum is σ = 392786851968. Its totient is φ = 49877694720.

The previous prime is 172233915899. The next prime is 172233915949. The reversal of 172233915906 is 609519332271.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64943590 + ... + 64946241.

It is an arithmetic number, because the mean of its divisors is an integer number (12274589124).

Almost surely, 2^172233915906 is an apocalyptic number.

172233915906 is an abundant number, since it is smaller than the sum of its proper divisors (220552936062).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172233915906 is a wasteful number, since it uses less digits than its factorization.

172233915906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129889866.

The product of its (nonzero) digits is 612360, while the sum is 48.

The spelling of 172233915906 in words is "one hundred seventy-two billion, two hundred thirty-three million, nine hundred fifteen thousand, nine hundred six".