172188860202008 has 192 divisors, whose sum is σ = 366525550147680. Its totient is φ = 75376933632000.

The previous prime is 172188860201987. The next prime is 172188860202019. The reversal of 172188860202008 is 800202068881271.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9895334108 + ... + 9895351508.

Almost surely, 2^{172188860202008} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172188860202008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183262775073840).

172188860202008 is an abundant number, since it is smaller than the sum of its proper divisors (194336689945672).

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

172188860202008 is a wasteful number, since it uses less digits than its factorization.

172188860202008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18970 (or 18943 counting only the distinct ones).

The product of its (nonzero) digits is 1376256, while the sum is 53.

The spelling of 172188860202008 in words is "one hundred seventy-two trillion, one hundred eighty-eight billion, eight hundred sixty million, two hundred two thousand, eight".