11054691999 has 80 divisors (see below), whose sum is σ = 18388302240. Its totient is φ = 6575696640.

The previous prime is 11054691979. The next prime is 11054692003. The reversal of 11054691999 is 99919645011.

It is a happy number.

11054691999 is a `hidden beast` number, since 1 + 1 + 0 + 546 + 9 + 1 + 9 + 99 = 666.

It is not a de Polignac number, because 11054691999 - 2¹⁹ = 11054167711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11054691919) 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 79 ways as a sum of consecutive naturals, for example, 3788289 + ... + 3791205.

It is an arithmetic number, because the mean of its divisors is an integer number (229853778).

Almost surely, 2^11054691999 is an apocalyptic number.

11054691999 is a deficient number, since it is larger than the sum of its proper divisors (7333610241).

11054691999 is a wasteful number, since it uses less digits than its factorization.

11054691999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3062 (or 3053 counting only the distinct ones).

The product of its (nonzero) digits is 787320, while the sum is 54.

The spelling of 11054691999 in words is "eleven billion, fifty-four million, six hundred ninety-one thousand, nine hundred ninety-nine".