866508011360730 has 96 divisors (see below), whose sum is σ = 2350881176192640. Its totient is φ = 221021650101120.

The previous prime is 866508011360687. The next prime is 866508011360801. The reversal of 866508011360730 is 37063110805668.

866508011360730 is a `hidden beast` number, since 8 + 6 + 6 + 508 + 0 + 1 + 1 + 3 + 60 + 73 + 0 = 666.

It is a super-2 number, since 2×866508011360730² (a number of 31 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1333854436 + ... + 1334503904.

It is an arithmetic number, because the mean of its divisors is an integer number (24488345585340).

Almost surely, 2^{866508011360730} is an apocalyptic number.

866508011360730 is an abundant number, since it is smaller than the sum of its proper divisors (1484373164831910).

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

866508011360730 is a wasteful number, since it uses less digits than its factorization.

866508011360730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294036 (or 1294033 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 866508011360730 in words is "eight hundred sixty-six trillion, five hundred eight billion, eleven million, three hundred sixty thousand, seven hundred thirty".