80866713600 has 504 divisors, whose sum is σ = 294121443252. Its totient is φ = 21233664000.

The previous prime is 80866713593. The next prime is 80866713647. The reversal of 80866713600 is 631766808.

It can be written as a sum of positive squares in 6 ways, for example, as 46822035456 + 34044678144 = 216384^2 + 184512^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 134553300 + ... + 134553900.

Almost surely, 2^80866713600 is an apocalyptic number.

80866713600 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 80866713600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147060721626).

80866713600 is an abundant number, since it is smaller than the sum of its proper divisors (213254729652).

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

80866713600 is a wasteful number, since it uses less digits than its factorization.

80866713600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716 (or 684 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 80866713600 in words is "eighty billion, eight hundred sixty-six million, seven hundred thirteen thousand, six hundred".