3655644564 has 96 divisors (see below), whose sum is σ = 10456879104. Its totient is φ = 978088320.

The previous prime is 3655644557. The next prime is 3655644611. The reversal of 3655644564 is 4654465563.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6844 + ... + 85779.

It is an arithmetic number, because the mean of its divisors is an integer number (108925824).

Almost surely, 2^3655644564 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 3655644564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5228439552).

3655644564 is an abundant number, since it is smaller than the sum of its proper divisors (6801234540).

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

3655644564 is a wasteful number, since it uses less digits than its factorization.

3655644564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92677 (or 92675 counting only the distinct ones).

The product of its digits is 5184000, while the sum is 48.

The square root of 3655644564 is about 60461.9265654015. The cubic root of 3655644564 is about 1540.4749988068.

The spelling of 3655644564 in words is "three billion, six hundred fifty-five million, six hundred forty-four thousand, five hundred sixty-four".