168001255980 has 120 divisors (see below), whose sum is σ = 530873769888. Its totient is φ = 44473266432.

The previous prime is 168001255951. The next prime is 168001255987. The reversal of 168001255980 is 89552100861.

It is a happy number.

168001255980 is a `hidden beast` number, since 1 + 6 + 8 + 0 + 0 + 12 + 559 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (168001255987) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 156544 + ... + 600423.

Almost surely, 2^168001255980 is an apocalyptic number.

168001255980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168001255980 is an abundant number, since it is smaller than the sum of its proper divisors (362872513908).

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

168001255980 is a wasteful number, since it uses less digits than its factorization.

168001255980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757125 (or 757114 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 45.

The spelling of 168001255980 in words is "one hundred sixty-eight billion, one million, two hundred fifty-five thousand, nine hundred eighty".