11616506555 has 8 divisors (see below), whose sum is σ = 14759796672. Its totient is φ = 8746546048.

The previous prime is 11616506543. The next prime is 11616506593. The reversal of 11616506555 is 55560561611.

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 11616506555 - 2⁸ = 11616506299 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 68332307 + ... + 68332476.

It is an arithmetic number, because the mean of its divisors is an integer number (1844974584).

Almost surely, 2^11616506555 is an apocalyptic number.

11616506555 is a deficient number, since it is larger than the sum of its proper divisors (3143290117).

11616506555 is a wasteful number, since it uses less digits than its factorization.

11616506555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136664805.

The product of its (nonzero) digits is 135000, while the sum is 41.

The spelling of 11616506555 in words is "eleven billion, six hundred sixteen million, five hundred six thousand, five hundred fifty-five".