3613815332064 has 72 divisors (see below), whose sum is σ = 11744899835760. Its totient is φ = 1032518665728.

The previous prime is 3613815332053. The next prime is 3613815332167. The reversal of 3613815332064 is 4602335183163.

It is a happy number.

3613815332064 is a `hidden beast` number, since 3 + 6 + 1 + 38 + 1 + 533 + 20 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×3613815332064² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 896281549 + ... + 896285580.

It is an arithmetic number, because the mean of its divisors is an integer number (163123608830).

Almost surely, 2^{3613815332064} is an apocalyptic number.

It is an amenable number.

3613815332064 is an abundant number, since it is smaller than the sum of its proper divisors (8131084503696).

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

3613815332064 is a wasteful number, since it uses less digits than its factorization.

3613815332064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1792567152 (or 1792567141 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 45.

The spelling of 3613815332064 in words is "three trillion, six hundred thirteen billion, eight hundred fifteen million, three hundred thirty-two thousand, sixty-four".