80616399360 has 960 divisors, whose sum is σ = 317398435200. Its totient is φ = 17379360768.

The previous prime is 80616399359. The next prime is 80616399377. The reversal of 80616399360 is 6399361608.

It is a tau number, because it is divible by the number of its divisors (960).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 905802196 + ... + 905802284.

It is an arithmetic number, because the mean of its divisors is an integer number (330623370).

Almost surely, 2^80616399360 is an apocalyptic number.

80616399360 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 80616399360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158699217600).

80616399360 is an abundant number, since it is smaller than the sum of its proper divisors (236782035840).

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

80616399360 is a wasteful number, since it uses less digits than its factorization.

80616399360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 51.

The spelling of 80616399360 in words is "eighty billion, six hundred sixteen million, three hundred ninety-nine thousand, three hundred sixty".