172136446222 has 16 divisors (see below), whose sum is σ = 290156418720. Its totient is φ = 75993347232.

The previous prime is 172136446217. The next prime is 172136446241. The reversal of 172136446222 is 222644631271.

It is a super-2 number, since 2×172136446222² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143926197 + ... + 143927392.

It is an arithmetic number, because the mean of its divisors is an integer number (18134776170).

Almost surely, 2^172136446222 is an apocalyptic number.

172136446222 is a deficient number, since it is larger than the sum of its proper divisors (118019972498).

172136446222 is a wasteful number, since it uses less digits than its factorization.

172136446222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287853627.

The product of its digits is 193536, while the sum is 40.

The spelling of 172136446222 in words is "one hundred seventy-two billion, one hundred thirty-six million, four hundred forty-six thousand, two hundred twenty-two".