168100644883880 has 64 divisors (see below), whose sum is σ = 381917812872960. Its totient is φ = 66584081691648.

The previous prime is 168100644883879. The next prime is 168100644883901. The reversal of 168100644883880 is 88388446001861.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81475904 + ... + 83513616.

It is an arithmetic number, because the mean of its divisors is an integer number (5967465826140).

Almost surely, 2^{168100644883880} is an apocalyptic number.

168100644883880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168100644883880 is an abundant number, since it is smaller than the sum of its proper divisors (213817167989080).

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

168100644883880 is a wasteful number, since it uses less digits than its factorization.

168100644883880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2057850 (or 2057846 counting only the distinct ones).

The product of its (nonzero) digits is 56623104, while the sum is 65.

The spelling of 168100644883880 in words is "one hundred sixty-eight trillion, one hundred billion, six hundred forty-four million, eight hundred eighty-three thousand, eight hundred eighty".