11156242165 has 8 divisors (see below), whose sum is σ = 13483804320. Its totient is φ = 8860784592.

The previous prime is 11156242127. The next prime is 11156242169. The reversal of 11156242165 is 56124265111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11156242165 - 2⁷ = 11156242037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11156242165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11156242169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8025379 + ... + 8026768.

It is an arithmetic number, because the mean of its divisors is an integer number (1685475540).

Almost surely, 2^11156242165 is an apocalyptic number.

It is an amenable number.

11156242165 is a deficient number, since it is larger than the sum of its proper divisors (2327562155).

11156242165 is a wasteful number, since it uses less digits than its factorization.

11156242165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16052291.

The product of its digits is 14400, while the sum is 34.

The spelling of 11156242165 in words is "eleven billion, one hundred fifty-six million, two hundred forty-two thousand, one hundred sixty-five".