366861492864 has 48 divisors (see below), whose sum is σ = 1055682163770. Its totient is φ = 122287163904.

The previous prime is 366861492857. The next prime is 366861492883. The reversal of 366861492864 is 468294168663.

366861492864 is a `hidden beast` number, since 3 + 6 + 6 + 8 + 61 + 492 + 86 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 214443086400 + 152418406464 = 463080^2 + 390408^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 159226927 + ... + 159229230.

Almost surely, 2^366861492864 is an apocalyptic number.

It is an amenable number.

366861492864 is an abundant number, since it is smaller than the sum of its proper divisors (688820670906).

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

366861492864 is a wasteful number, since it uses less digits than its factorization.

366861492864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318456177 (or 318456162 counting only the distinct ones).

The product of its digits is 71663616, while the sum is 63.

The spelling of 366861492864 in words is "three hundred sixty-six billion, eight hundred sixty-one million, four hundred ninety-two thousand, eight hundred sixty-four".