3665152512 has 360 divisors, whose sum is σ = 12574257696. Its totient is φ = 1006608384.

The previous prime is 3665152499. The next prime is 3665152531. The reversal of 3665152512 is 2152515663.

3665152512 is a `hidden beast` number, since 36 + 65 + 1 + 52 + 512 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 44158423 + ... + 44158505.

Almost surely, 2^3665152512 is an apocalyptic number.

3665152512 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3665152512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6287128848).

3665152512 is an abundant number, since it is smaller than the sum of its proper divisors (8909105184).

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

3665152512 is an equidigital number, since it uses as much as digits as its factorization.

3665152512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188 (or 132 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 3665152512 is about 60540.5030702587. The cubic root of 3665152512 is about 1541.8093805662.

The spelling of 3665152512 in words is "three billion, six hundred sixty-five million, one hundred fifty-two thousand, five hundred twelve".