171122672472 has 16 divisors (see below), whose sum is σ = 427806681240. Its totient is φ = 57040890816.

The previous prime is 171122672459. The next prime is 171122672549. The reversal of 171122672472 is 274276221171.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3565055653 + ... + 3565055700.

Almost surely, 2^171122672472 is an apocalyptic number.

171122672472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

171122672472 is an abundant number, since it is smaller than the sum of its proper divisors (256684008768).

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

171122672472 is a wasteful number, since it uses less digits than its factorization.

171122672472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7130111362 (or 7130111358 counting only the distinct ones).

The product of its digits is 131712, while the sum is 42.

The spelling of 171122672472 in words is "one hundred seventy-one billion, one hundred twenty-two million, six hundred seventy-two thousand, four hundred seventy-two".