11857655155 has 8 divisors (see below), whose sum is σ = 14688192384. Its totient is φ = 9180120000.

The previous prime is 11857655087. The next prime is 11857655177. The reversal of 11857655155 is 55155675811.

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

It is not a de Polignac number, because 11857655155 - 2⁹ = 11857654643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11857655099 and 11857655108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38250346 + ... + 38250655.

It is an arithmetic number, because the mean of its divisors is an integer number (1836024048).

Almost surely, 2^11857655155 is an apocalyptic number.

11857655155 is a deficient number, since it is larger than the sum of its proper divisors (2830537229).

11857655155 is an equidigital number, since it uses as much as digits as its factorization.

11857655155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76501037.

The product of its digits is 1050000, while the sum is 49.

The spelling of 11857655155 in words is "eleven billion, eight hundred fifty-seven million, six hundred fifty-five thousand, one hundred fifty-five".