80136220752 has 80 divisors (see below), whose sum is σ = 262880734080. Its totient is φ = 22896062208.

The previous prime is 80136220741. The next prime is 80136220781. The reversal of 80136220752 is 25702263108.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 13247013 + ... + 13253060.

It is an arithmetic number, because the mean of its divisors is an integer number (3286009176).

Almost surely, 2^80136220752 is an apocalyptic number.

It is an amenable number.

80136220752 is an abundant number, since it is smaller than the sum of its proper divisors (182744513328).

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

80136220752 is a wasteful number, since it uses less digits than its factorization.

80136220752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26500097 (or 26500085 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 80136220752 in words is "eighty billion, one hundred thirty-six million, two hundred twenty thousand, seven hundred fifty-two".