80771316400 has 120 divisors (see below), whose sum is σ = 195239066400. Its totient is φ = 32111738880.

The previous prime is 80771316391. The next prime is 80771316413. The reversal of 80771316400 is 461317708.

It is a self number, because there is not a number n which added to its sum of digits gives 80771316400.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66368592 + ... + 66369808.

It is an arithmetic number, because the mean of its divisors is an integer number (1626992220).

Almost surely, 2^80771316400 is an apocalyptic number.

80771316400 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 80771316400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97619533200).

80771316400 is an abundant number, since it is smaller than the sum of its proper divisors (114467750000).

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

80771316400 is a wasteful number, since it uses less digits than its factorization.

80771316400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111 (or 2100 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 37.

The spelling of 80771316400 in words is "eighty billion, seven hundred seventy-one million, three hundred sixteen thousand, four hundred".