6636375594 has 96 divisors (see below), whose sum is σ = 15418728000. Its totient is φ = 2056741632.

The previous prime is 6636375583. The next prime is 6636375617. The reversal of 6636375594 is 4955736366.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6636375594.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11662942 + ... + 11663510.

It is an arithmetic number, because the mean of its divisors is an integer number (160611750).

Almost surely, 2^6636375594 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6636375594, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7709364000).

6636375594 is an abundant number, since it is smaller than the sum of its proper divisors (8782352406).

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

6636375594 is a wasteful number, since it uses less digits than its factorization.

6636375594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172 (or 1169 counting only the distinct ones).

The product of its digits is 12247200, while the sum is 54.

The square root of 6636375594 is about 81463.9527275715. The cubic root of 6636375594 is about 1879.2172305241.

The spelling of 6636375594 in words is "six billion, six hundred thirty-six million, three hundred seventy-five thousand, five hundred ninety-four".