2168953459199 has 16 divisors (see below), whose sum is σ = 2384874835200. Its totient is φ = 1963396201536.

The previous prime is 2168953459177. The next prime is 2168953459249. The reversal of 2168953459199 is 9919543598612.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2168953459199 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 (2168953459109) 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, 2187569 + ... + 3020490.

It is an arithmetic number, because the mean of its divisors is an integer number (149054677200).

Almost surely, 2^{2168953459199} is an apocalyptic number.

2168953459199 is a deficient number, since it is larger than the sum of its proper divisors (215921376001).

2168953459199 is a wasteful number, since it uses less digits than its factorization.

2168953459199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5209054.

The product of its digits is 188956800, while the sum is 71.

The spelling of 2168953459199 in words is "two trillion, one hundred sixty-eight billion, nine hundred fifty-three million, four hundred fifty-nine thousand, one hundred ninety-nine".