173213355168 has 108 divisors (see below), whose sum is σ = 572996011770. Its totient is φ = 49489526016.

The previous prime is 173213355167. The next prime is 173213355179. The reversal of 173213355168 is 861553312371.

173213355168 is a `hidden beast` number, since 1 + 7 + 3 + 2 + 1 + 33 + 551 + 68 = 666.

It can be written as a sum of positive squares in only one way, i.e., 110258530704 + 62954824464 = 332052^2 + 250908^2 .

It is not an unprimeable number, because it can be changed into a prime (173213355167) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6122983 + ... + 6151206.

Almost surely, 2^173213355168 is an apocalyptic number.

173213355168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

173213355168 is an abundant number, since it is smaller than the sum of its proper divisors (399782656602).

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

173213355168 is a wasteful number, since it uses less digits than its factorization.

173213355168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12274219 (or 12274201 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The spelling of 173213355168 in words is "one hundred seventy-three billion, two hundred thirteen million, three hundred fifty-five thousand, one hundred sixty-eight".