11156136215 has 16 divisors (see below), whose sum is σ = 15713355072. Its totient is φ = 7443166464.

The previous prime is 11156136193. The next prime is 11156136263. The reversal of 11156136215 is 51263165111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11156136215 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4306094 + ... + 4308683.

It is an arithmetic number, because the mean of its divisors is an integer number (982084692).

Almost surely, 2^11156136215 is an apocalyptic number.

11156136215 is a deficient number, since it is larger than the sum of its proper divisors (4557218857).

11156136215 is an equidigital number, since it uses as much as digits as its factorization.

11156136215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8614826.

The product of its digits is 5400, while the sum is 32.

The spelling of 11156136215 in words is "eleven billion, one hundred fifty-six million, one hundred thirty-six thousand, two hundred fifteen".