168697445556570 has 384 divisors, whose sum is σ = 512365615644672. Its totient is φ = 34772023180800.

The previous prime is 168697445556557. The next prime is 168697445556617. The reversal of 168697445556570 is 75655544796861.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 142768327 + ... + 143945093.

It is an arithmetic number, because the mean of its divisors is an integer number (1334285457408).

Almost surely, 2^{168697445556570} is an apocalyptic number.

168697445556570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 168697445556570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256182807822336).

168697445556570 is an abundant number, since it is smaller than the sum of its proper divisors (343668170088102).

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

168697445556570 is a wasteful number, since it uses less digits than its factorization.

168697445556570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176914 (or 1176895 counting only the distinct ones).

The product of its (nonzero) digits is 7620480000, while the sum is 78.

The spelling of 168697445556570 in words is "one hundred sixty-eight trillion, six hundred ninety-seven billion, four hundred forty-five million, five hundred fifty-six thousand, five hundred seventy".