168623764197 has 16 divisors (see below), whose sum is σ = 257094666240. Its totient is φ = 96302373552.

The previous prime is 168623764189. The next prime is 168623764219. The reversal of 168623764197 is 791467326861.

It is not a de Polignac number, because 168623764197 - 2³ = 168623764189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 168623764197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168623764117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2214297 + ... + 2289182.

It is an arithmetic number, because the mean of its divisors is an integer number (16068416640).

Almost surely, 2^168623764197 is an apocalyptic number.

It is an amenable number.

168623764197 is a deficient number, since it is larger than the sum of its proper divisors (88470902043).

168623764197 is a wasteful number, since it uses less digits than its factorization.

168623764197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4505272.

The product of its digits is 18289152, while the sum is 60.

The spelling of 168623764197 in words is "one hundred sixty-eight billion, six hundred twenty-three million, seven hundred sixty-four thousand, one hundred ninety-seven".