3635664022320 has 160 divisors (see below), whose sum is σ = 12377673849600. Its totient is φ = 875457745920.

The previous prime is 3635664022223. The next prime is 3635664022327. The reversal of 3635664022320 is 232204665363.

It is a happy number.

It is a super-3 number, since 3×3635664022320³ (a number of 39 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (3635664022327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4227934 + ... + 5014653.

It is an arithmetic number, because the mean of its divisors is an integer number (77360461560).

Almost surely, 2^{3635664022320} is an apocalyptic number.

3635664022320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3635664022320 is an abundant number, since it is smaller than the sum of its proper divisors (8742009827280).

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

3635664022320 is a wasteful number, since it uses less digits than its factorization.

3635664022320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9242763 (or 9242757 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 42.

Adding to 3635664022320 its reverse (232204665363), we get a palindrome (3867868687683).

The spelling of 3635664022320 in words is "three trillion, six hundred thirty-five billion, six hundred sixty-four million, twenty-two thousand, three hundred twenty".