866707048080 has 160 divisors (see below), whose sum is σ = 2986595809920. Its totient is φ = 231023439360.

The previous prime is 866707048073. The next prime is 866707048099. The reversal of 866707048080 is 80840707668.

866707048080 is a `hidden beast` number, since 86 + 6 + 7 + 0 + 7 + 0 + 480 + 80 = 666.

It is a super-2 number, since 2×866707048080² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 5058699 + ... + 5227221.

It is an arithmetic number, because the mean of its divisors is an integer number (18666223812).

Almost surely, 2^866707048080 is an apocalyptic number.

866707048080 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 866707048080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1493297904960).

866707048080 is an abundant number, since it is smaller than the sum of its proper divisors (2119888761840).

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

866707048080 is a wasteful number, since it uses less digits than its factorization.

866707048080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170926 (or 170914 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 54.

The spelling of 866707048080 in words is "eight hundred sixty-six billion, seven hundred seven million, forty-eight thousand, eighty".