866335502340 has 216 divisors, whose sum is σ = 3301144566720. Its totient is φ = 180017735040.

The previous prime is 866335502327. The next prime is 866335502363. The reversal of 866335502340 is 43205533668.

866335502340 is a `hidden beast` number, since 8 + 6 + 6 + 33 + 550 + 23 + 40 = 666.

It is a super-2 number, since 2×866335502340² (a number of 25 digits) contains 22 as substring.

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 71 ways as a sum of consecutive naturals, for example, 2688730 + ... + 2993649.

Almost surely, 2^866335502340 is an apocalyptic number.

It is an amenable number.

866335502340 is an abundant number, since it is smaller than the sum of its proper divisors (2434809064380).

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

866335502340 is a wasteful number, since it uses less digits than its factorization.

866335502340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5682423 (or 5682407 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 45.

The spelling of 866335502340 in words is "eight hundred sixty-six billion, three hundred thirty-five million, five hundred two thousand, three hundred forty".