3668699395584 has 160 divisors (see below), whose sum is σ = 10861019136000. Its totient is φ = 1222740559872.

The previous prime is 3668699395567. The next prime is 3668699395631. The reversal of 3668699395584 is 4855939968663.

It is a happy number.

3668699395584 is a `hidden beast` number, since 3 + 6 + 68 + 6 + 99 + 395 + 5 + 84 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159227137 + ... + 159250175.

It is an arithmetic number, because the mean of its divisors is an integer number (67881369600).

Almost surely, 2^{3668699395584} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3668699395584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5430509568000).

3668699395584 is an abundant number, since it is smaller than the sum of its proper divisors (7192319740416).

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

3668699395584 is a wasteful number, since it uses less digits than its factorization.

3668699395584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34585 (or 34563 counting only the distinct ones).

The product of its digits is 9069926400, while the sum is 81.

The spelling of 3668699395584 in words is "three trillion, six hundred sixty-eight billion, six hundred ninety-nine million, three hundred ninety-five thousand, five hundred eighty-four".