117668897802197 has 4 divisors (see below), whose sum is σ = 134478740345376. Its totient is φ = 100859055259020.

The previous prime is 117668897802167. The next prime is 117668897802259. The reversal of 117668897802197 is 791208798866711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 117668897802197 - 2³² = 117664602834901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117668897802167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8404921271579 + ... + 8404921271592.

It is an arithmetic number, because the mean of its divisors is an integer number (33619685086344).

Almost surely, 2^{117668897802197} is an apocalyptic number.

It is an amenable number.

117668897802197 is a deficient number, since it is larger than the sum of its proper divisors (16809842543179).

117668897802197 is an equidigital number, since it uses as much as digits as its factorization.

117668897802197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16809842543178.

The product of its (nonzero) digits is 1024192512, while the sum is 80.

The spelling of 117668897802197 in words is "one hundred seventeen trillion, six hundred sixty-eight billion, eight hundred ninety-seven million, eight hundred two thousand, one hundred ninety-seven".