163927808080 has 80 divisors (see below), whose sum is σ = 403723535040. Its totient is φ = 61687719936.

The previous prime is 163927808059. The next prime is 163927808113. The reversal of 163927808080 is 80808729361.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

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, 3330691 + ... + 3379549.

It is an arithmetic number, because the mean of its divisors is an integer number (5046544188).

Almost surely, 2^163927808080 is an apocalyptic number.

163927808080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163927808080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201861767520).

163927808080 is an abundant number, since it is smaller than the sum of its proper divisors (239795726960).

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

163927808080 is a wasteful number, since it uses less digits than its factorization.

163927808080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51356 (or 51350 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 52.

The spelling of 163927808080 in words is "one hundred sixty-three billion, nine hundred twenty-seven million, eight hundred eight thousand, eighty".