3621747716660 has 24 divisors (see below), whose sum is σ = 7709857471176. Its totient is φ = 1428853893120.

The previous prime is 3621747716647. The next prime is 3621747716689. The reversal of 3621747716660 is 666177471263.

It can be written as a sum of positive squares in 4 ways, for example, as 1325546952976 + 2296200763684 = 1151324^2 + 1515322^2 .

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 3621747716596 and 3621747716605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1240323101 + ... + 1240326020.

It is an arithmetic number, because the mean of its divisors is an integer number (321244061299).

Almost surely, 2^{3621747716660} is an apocalyptic number.

It is an amenable number.

3621747716660 is an abundant number, since it is smaller than the sum of its proper divisors (4088109754516).

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

3621747716660 is a wasteful number, since it uses less digits than its factorization.

3621747716660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2480649203 (or 2480649201 counting only the distinct ones).

The product of its (nonzero) digits is 10668672, while the sum is 56.

The spelling of 3621747716660 in words is "three trillion, six hundred twenty-one billion, seven hundred forty-seven million, seven hundred sixteen thousand, six hundred sixty".