6635743631660 has 72 divisors (see below), whose sum is σ = 16495285995888. Its totient is φ = 2227382467200.

The previous prime is 6635743631641. The next prime is 6635743631701. The reversal of 6635743631660 is 661363475366.

It is a junction number, because it is equal to n+sod(n) for n = 6635743631596 and 6635743631605.

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, 105431726 + ... + 105494645.

Almost surely, 2^{6635743631660} is an apocalyptic number.

It is an amenable number.

6635743631660 is an abundant number, since it is smaller than the sum of its proper divisors (9859542364228).

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

6635743631660 is a wasteful number, since it uses less digits than its factorization.

6635743631660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210926415 (or 210926402 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 56.

The spelling of 6635743631660 in words is "six trillion, six hundred thirty-five billion, seven hundred forty-three million, six hundred thirty-one thousand, six hundred sixty".