168142631080 has 16 divisors (see below), whose sum is σ = 378320920020. Its totient is φ = 67257052416.

The previous prime is 168142631003. The next prime is 168142631123. The reversal of 168142631080 is 80136241861.

It can be written as a sum of positive squares in 2 ways, for example, as 155676015364 + 12466615716 = 394558^2 + 111654^2 .

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 4203565777 = 168142631080 / (1 + 6 + 8 + 1 + 4 + 2 + 6 + 3 + 1 + 0 + 8 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2101782849 + ... + 2101782928.

Almost surely, 2^168142631080 is an apocalyptic number.

168142631080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168142631080 is an abundant number, since it is smaller than the sum of its proper divisors (210178288940).

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

168142631080 is a wasteful number, since it uses less digits than its factorization.

168142631080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4203565788 (or 4203565784 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The spelling of 168142631080 in words is "one hundred sixty-eight billion, one hundred forty-two million, six hundred thirty-one thousand, eighty".