2691116916191 has 12 divisors (see below), whose sum is σ = 2958056724000. Its totient is φ = 2446426767840.

The previous prime is 2691116916179. The next prime is 2691116916209. The reversal of 2691116916191 is 1916196111962.

It is not a de Polignac number, because 2691116916191 - 2⁶ = 2691116916127 is a prime.

It is a super-2 number, since 2×2691116916191² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2691116916101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8154410 + ... + 8478008.

It is an arithmetic number, because the mean of its divisors is an integer number (246504727000).

Almost surely, 2^{2691116916191} is an apocalyptic number.

2691116916191 is a deficient number, since it is larger than the sum of its proper divisors (266939807809).

2691116916191 is a wasteful number, since it uses less digits than its factorization.

2691116916191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392350 (or 392339 counting only the distinct ones).

The product of its digits is 314928, while the sum is 53.

The spelling of 2691116916191 in words is "two trillion, six hundred ninety-one billion, one hundred sixteen million, nine hundred sixteen thousand, one hundred ninety-one".