366213464640 has 84 divisors (see below), whose sum is σ = 1259621739324. Its totient is φ = 97656923136.

The previous prime is 366213464629. The next prime is 366213464651. The reversal of 366213464640 is 46464312663.

It is an interprime number because it is at equal distance from previous prime (366213464629) and next prime (366213464651).

It can be written as a sum of positive squares in 2 ways, for example, as 179091468864 + 187121995776 = 423192^2 + 432576^2 .

It is a super-2 number, since 2×366213464640² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

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 11 ways as a sum of consecutive naturals, for example, 63575847 + ... + 63581606.

Almost surely, 2^366213464640 is an apocalyptic number.

366213464640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

366213464640 is an abundant number, since it is smaller than the sum of its proper divisors (893408274684).

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

366213464640 is a wasteful number, since it uses less digits than its factorization.

366213464640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127157476 (or 127157463 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 45.

The spelling of 366213464640 in words is "three hundred sixty-six billion, two hundred thirteen million, four hundred sixty-four thousand, six hundred forty".