11994985055 has 8 divisors (see below), whose sum is σ = 14397194400. Its totient is φ = 9593846496.

The previous prime is 11994985049. The next prime is 11994985073. The reversal of 11994985055 is 55058949911.

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 11994985055 - 2¹⁸ = 11994722911 is a prime.

It is a congruent number.

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, 242840 + ... + 288029.

It is an arithmetic number, because the mean of its divisors is an integer number (1799649300).

Almost surely, 2^11994985055 is an apocalyptic number.

11994985055 is a deficient number, since it is larger than the sum of its proper divisors (2402209345).

11994985055 is an equidigital number, since it uses as much as digits as its factorization.

11994985055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535393.

The product of its (nonzero) digits is 2916000, while the sum is 56.

The spelling of 11994985055 in words is "eleven billion, nine hundred ninety-four million, nine hundred eighty-five thousand, fifty-five".