80985110940 has 288 divisors, whose sum is σ = 270365921280. Its totient is φ = 19530796032.

The previous prime is 80985110929. The next prime is 80985110977. The reversal of 80985110940 is 4901158908.

80985110940 is a `hidden beast` number, since 8 + 0 + 98 + 511 + 0 + 9 + 40 = 666.

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

It is a congruent number.

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, 67882984 + ... + 67884176.

It is an arithmetic number, because the mean of its divisors is an integer number (938770560).

Almost surely, 2^80985110940 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80985110940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135182960640).

80985110940 is an abundant number, since it is smaller than the sum of its proper divisors (189380810340).

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

80985110940 is a wasteful number, since it uses less digits than its factorization.

80985110940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2113 (or 2108 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 45.

The spelling of 80985110940 in words is "eighty billion, nine hundred eighty-five million, one hundred ten thousand, nine hundred forty".