3665818116 has 27 divisors (see below), whose sum is σ = 9267291943. Its totient is φ = 1221818280.

The previous prime is 3665818099. The next prime is 3665818147. The reversal of 3665818116 is 6118185663.

The square root of 3665818116 is 60546.

It is a perfect power (a square), and thus also a powerful number.

3665818116 is a `hidden beast` number, since 3 + 66 + 581 + 8 + 1 + 1 + 6 = 666.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 358231 + ... + 368321.

Almost surely, 2^3665818116 is an apocalyptic number.

3665818116 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

3665818116 is the 60546-th square number.

It is an amenable number.

3665818116 is an abundant number, since it is smaller than the sum of its proper divisors (5601473827).

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

3665818116 is an equidigital number, since it uses as much as digits as its factorization.

3665818116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20192 (or 10096 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The cubic root of 3665818116 is about 1541.9027075034.

The spelling of 3665818116 in words is "three billion, six hundred sixty-five million, eight hundred eighteen thousand, one hundred sixteen".