3618807660 has 72 divisors (see below), whose sum is σ = 11821446000. Its totient is φ = 890782848.

The previous prime is 3618807587. The next prime is 3618807677. The reversal of 3618807660 is 667088163.

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 23 ways as a sum of consecutive naturals, for example, 770910 + ... + 775589.

It is an arithmetic number, because the mean of its divisors is an integer number (164186750).

Almost surely, 2^3618807660 is an apocalyptic number.

3618807660 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3618807660 is an abundant number, since it is smaller than the sum of its proper divisors (8202638340).

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

3618807660 is a wasteful number, since it uses less digits than its factorization.

3618807660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1546527 (or 1546522 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 3618807660 is about 60156.5263292355. The cubic root of 3618807660 is about 1535.2832094588.

The spelling of 3618807660 in words is "three billion, six hundred eighteen million, eight hundred seven thousand, six hundred sixty".