3656516816 has 20 divisors (see below), whose sum is σ = 7392523872. Its totient is φ = 1748768736.

The previous prime is 3656516779. The next prime is 3656516891. The reversal of 3656516816 is 6186156563.

It is a super-3 number, since 3×3656516816³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4967726 + ... + 4968461.

Almost surely, 2^3656516816 is an apocalyptic number.

It is an amenable number.

3656516816 is an abundant number, since it is smaller than the sum of its proper divisors (3736007056).

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

3656516816 is a wasteful number, since it uses less digits than its factorization.

3656516816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9936218 (or 9936212 counting only the distinct ones).

The product of its digits is 777600, while the sum is 47.

The square root of 3656516816 is about 60469.1393687722. The cubic root of 3656516816 is about 1540.5975103110.

The spelling of 3656516816 in words is "three billion, six hundred fifty-six million, five hundred sixteen thousand, eight hundred sixteen".