168985768080 has 40 divisors (see below), whose sum is σ = 523855881792. Its totient is φ = 45062871424.

The previous prime is 168985768057. The next prime is 168985768087. The reversal of 168985768080 is 80867589861.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (168985768087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 352053444 + ... + 352053923.

Almost surely, 2^168985768080 is an apocalyptic number.

168985768080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168985768080 is an abundant number, since it is smaller than the sum of its proper divisors (354870113712).

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

168985768080 is a wasteful number, since it uses less digits than its factorization.

168985768080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704107383 (or 704107377 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 66.

The spelling of 168985768080 in words is "one hundred sixty-eight billion, nine hundred eighty-five million, seven hundred sixty-eight thousand, eighty".