663377538197 has 8 divisors (see below), whose sum is σ = 724716955872. Its totient is φ = 602210182000.

The previous prime is 663377538191. The next prime is 663377538233. The reversal of 663377538197 is 791835773366.

663377538197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 663377538197 - 2⁸ = 663377537941 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 (663377538191) 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, 43007303 + ... + 43022724.

It is an arithmetic number, because the mean of its divisors is an integer number (90589619484).

Almost surely, 2^663377538197 is an apocalyptic number.

It is an amenable number.

663377538197 is a deficient number, since it is larger than the sum of its proper divisors (61339417675).

663377538197 is a wasteful number, since it uses less digits than its factorization.

663377538197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86030739.

The product of its digits is 120022560, while the sum is 65.

The spelling of 663377538197 in words is "six hundred sixty-three billion, three hundred seventy-seven million, five hundred thirty-eight thousand, one hundred ninety-seven".