3600663660 has 144 divisors (see below), whose sum is σ = 11937717792. Its totient is φ = 871219200.

The previous prime is 3600663641. The next prime is 3600663691. The reversal of 3600663660 is 663660063.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1267762 + ... + 1270598.

It is an arithmetic number, because the mean of its divisors is an integer number (82900818).

Almost surely, 2^3600663660 is an apocalyptic number.

3600663660 is a gapful number since it is divisible by the number (30) 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 3600663660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5968858896).

3600663660 is an abundant number, since it is smaller than the sum of its proper divisors (8337054132).

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

3600663660 is a wasteful number, since it uses less digits than its factorization.

3600663660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3504 (or 3499 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 36.

The square root of 3600663660 is about 60005.5302451366. The cubic root of 3600663660 is about 1532.7130384296.

The spelling of 3600663660 in words is "three billion, six hundred million, six hundred sixty-three thousand, six hundred sixty".