3660997536 has 144 divisors (see below), whose sum is σ = 11943929088. Its totient is φ = 1041984000.

The previous prime is 3660997531. The next prime is 3660997537. The reversal of 3660997536 is 6357990663.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (3660997531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 542986 + ... + 549686.

It is an arithmetic number, because the mean of its divisors is an integer number (82943952).

Almost surely, 2^3660997536 is an apocalyptic number.

3660997536 is a gapful number since it is divisible by the number (36) 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 3660997536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5971964544).

3660997536 is an abundant number, since it is smaller than the sum of its proper divisors (8282931552).

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

3660997536 is a wasteful number, since it uses less digits than its factorization.

3660997536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6995 (or 6984 counting only the distinct ones).

The product of its (nonzero) digits is 5511240, while the sum is 54.

The square root of 3660997536 is about 60506.1776680696. The cubic root of 3660997536 is about 1541.2265395837.

The spelling of 3660997536 in words is "three billion, six hundred sixty million, nine hundred ninety-seven thousand, five hundred thirty-six".