80646228880 has 160 divisors (see below), whose sum is σ = 219264537600. Its totient is φ = 27012550656.

The previous prime is 80646228877. The next prime is 80646228907. The reversal of 80646228880 is 8882264608.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7087836 + ... + 7099204.

It is an arithmetic number, because the mean of its divisors is an integer number (1370403360).

Almost surely, 2^80646228880 is an apocalyptic number.

80646228880 is a gapful number since it is divisible by the number (80) 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 80646228880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109632268800).

80646228880 is an abundant number, since it is smaller than the sum of its proper divisors (138618308720).

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

80646228880 is a wasteful number, since it uses less digits than its factorization.

80646228880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11681 (or 11675 counting only the distinct ones).

The product of its (nonzero) digits is 2359296, while the sum is 52.

The spelling of 80646228880 in words is "eighty billion, six hundred forty-six million, two hundred twenty-eight thousand, eight hundred eighty".