11611516159 has 2 divisors, whose sum is σ = 11611516160. Its totient is φ = 11611516158.

The previous prime is 11611516099. The next prime is 11611516177. The reversal of 11611516159 is 95161511611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11611516159 - 2⁹ = 11611515647 is a prime.

It is a super-2 number, since 2×11611516159² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11611516859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5805758079 + 5805758080.

It is an arithmetic number, because the mean of its divisors is an integer number (5805758080).

Almost surely, 2^11611516159 is an apocalyptic number.

11611516159 is a deficient number, since it is larger than the sum of its proper divisors (1).

11611516159 is an equidigital number, since it uses as much as digits as its factorization.

11611516159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8100, while the sum is 37.

The spelling of 11611516159 in words is "eleven billion, six hundred eleven million, five hundred sixteen thousand, one hundred fifty-nine".