8370121916199 has 32 divisors (see below), whose sum is σ = 11275378329600. Its totient is φ = 5522708528480.

The previous prime is 8370121916147. The next prime is 8370121916201. The reversal of 8370121916199 is 9916191210738.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 8370121916199 - 2²⁰ = 8370120867623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8370121914199) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1041185422 + ... + 1041193460.

It is an arithmetic number, because the mean of its divisors is an integer number (352355572800).

Almost surely, 2^{8370121916199} is an apocalyptic number.

8370121916199 is a deficient number, since it is larger than the sum of its proper divisors (2905256413401).

8370121916199 is a wasteful number, since it uses less digits than its factorization.

8370121916199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14915.

The product of its (nonzero) digits is 1469664, while the sum is 57.

The spelling of 8370121916199 in words is "eight trillion, three hundred seventy billion, one hundred twenty-one million, nine hundred sixteen thousand, one hundred ninety-nine".