170020172157200 has 60 divisors (see below), whose sum is σ = 409133356713360. Its totient is φ = 67898201124480.

The previous prime is 170020172157193. The next prime is 170020172157217. The reversal of 170020172157200 is 2751271020071.

170020172157200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×170020172157200² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 343088774 + ... + 343583973.

It is an arithmetic number, because the mean of its divisors is an integer number (6818889278556).

Almost surely, 2^{170020172157200} is an apocalyptic number.

170020172157200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

170020172157200 is an abundant number, since it is smaller than the sum of its proper divisors (239113184556160).

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

170020172157200 is a wasteful number, since it uses less digits than its factorization.

170020172157200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686673384 (or 686673373 counting only the distinct ones).

The product of its (nonzero) digits is 13720, while the sum is 35.

The spelling of 170020172157200 in words is "one hundred seventy trillion, twenty billion, one hundred seventy-two million, one hundred fifty-seven thousand, two hundred".