6636504416 has 48 divisors (see below), whose sum is σ = 13384602000. Its totient is φ = 3237416448.

The previous prime is 6636504389. The next prime is 6636504443. The reversal of 6636504416 is 6144056366.

It is an interprime number because it is at equal distance from previous prime (6636504389) and next prime (6636504443).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1523810 + ... + 1528158.

It is an arithmetic number, because the mean of its divisors is an integer number (278845875).

Almost surely, 2^6636504416 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 6636504416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6692301000).

6636504416 is an abundant number, since it is smaller than the sum of its proper divisors (6748097584).

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

6636504416 is a wasteful number, since it uses less digits than its factorization.

6636504416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5511 (or 5503 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 41.

The square root of 6636504416 is about 81464.7433924640. The cubic root of 6636504416 is about 1879.2293899201.

The spelling of 6636504416 in words is "six billion, six hundred thirty-six million, five hundred four thousand, four hundred sixteen".