815137960080 has 80 divisors (see below), whose sum is σ = 2614063135680. Its totient is φ = 209874599424.

The previous prime is 815137960061. The next prime is 815137960093. The reversal of 815137960080 is 80069731518.

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

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 58551802 + ... + 58565721.

It is an arithmetic number, because the mean of its divisors is an integer number (32675789196).

Almost surely, 2^815137960080 is an apocalyptic number.

815137960080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

815137960080 is an abundant number, since it is smaller than the sum of its proper divisors (1798925175600).

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

815137960080 is a wasteful number, since it uses less digits than its factorization.

815137960080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117117568 (or 117117562 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 48.

The spelling of 815137960080 in words is "eight hundred fifteen billion, one hundred thirty-seven million, nine hundred sixty thousand, eighty".