11604116555 has 4 divisors (see below), whose sum is σ = 13924939872. Its totient is φ = 9283293240.

The previous prime is 11604116551. The next prime is 11604116569. The reversal of 11604116555 is 55561140611.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55561140611 = 41 ⋅1355149771.

It is not a de Polignac number, because 11604116555 - 2² = 11604116551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11604116551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1160411651 + ... + 1160411660.

It is an arithmetic number, because the mean of its divisors is an integer number (3481234968).

Almost surely, 2^11604116555 is an apocalyptic number.

11604116555 is a deficient number, since it is larger than the sum of its proper divisors (2320823317).

11604116555 is an equidigital number, since it uses as much as digits as its factorization.

11604116555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2320823316.

The product of its (nonzero) digits is 18000, while the sum is 35.

The spelling of 11604116555 in words is "eleven billion, six hundred four million, one hundred sixteen thousand, five hundred fifty-five".