6663196637 has 8 divisors (see below), whose sum is σ = 6882496512. Its totient is φ = 6444169200.

The previous prime is 6663196457. The next prime is 6663196667. The reversal of 6663196637 is 7366913666.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6663196637 - 2²⁰ = 6662148061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6663196667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17789 + ... + 116802.

It is an arithmetic number, because the mean of its divisors is an integer number (860312064).

Almost surely, 2^6663196637 is an apocalyptic number.

It is an amenable number.

6663196637 is a deficient number, since it is larger than the sum of its proper divisors (219299875).

6663196637 is a wasteful number, since it uses less digits than its factorization.

6663196637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136219.

The product of its digits is 4408992, while the sum is 53.

The square root of 6663196637 is about 81628.4058217481. The cubic root of 6663196637 is about 1881.7454587963.

The spelling of 6663196637 in words is "six billion, six hundred sixty-three million, one hundred ninety-six thousand, six hundred thirty-seven".