168151677870 has 64 divisors (see below), whose sum is σ = 443465300736. Its totient is φ = 40466484480.

The previous prime is 168151677823. The next prime is 168151677913. The reversal of 168151677870 is 78776151861.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 168151677870.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1814464 + ... + 1904883.

It is an arithmetic number, because the mean of its divisors is an integer number (6929145324).

Almost surely, 2^168151677870 is an apocalyptic number.

168151677870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168151677870 is an abundant number, since it is smaller than the sum of its proper divisors (275313622866).

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

168151677870 is a wasteful number, since it uses less digits than its factorization.

168151677870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3719505.

The product of its (nonzero) digits is 3951360, while the sum is 57.

The spelling of 168151677870 in words is "one hundred sixty-eight billion, one hundred fifty-one million, six hundred seventy-seven thousand, eight hundred seventy".