11655555151 has 4 divisors (see below), whose sum is σ = 11655870832. Its totient is φ = 11655239472.

The previous prime is 11655555139. The next prime is 11655555193. The reversal of 11655555151 is 15155555611.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11655555151 - 2⁹ = 11655554639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11655555251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93795 + ... + 179188.

It is an arithmetic number, because the mean of its divisors is an integer number (2913967708).

Almost surely, 2^11655555151 is an apocalyptic number.

11655555151 is a deficient number, since it is larger than the sum of its proper divisors (315681).

11655555151 is an equidigital number, since it uses as much as digits as its factorization.

11655555151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315680.

The product of its digits is 93750, while the sum is 40.

The spelling of 11655555151 in words is "eleven billion, six hundred fifty-five million, five hundred fifty-five thousand, one hundred fifty-one".