11155791137994 has 24 divisors (see below), whose sum is σ = 24191880740352. Its totient is φ = 3715366285800.

The previous prime is 11155791137951. The next prime is 11155791138043. The reversal of 11155791137994 is 49973119755111.

11155791137994 is a `hidden beast` number, since 1 + 1 + 1 + 557 + 9 + 1 + 1 + 3 + 79 + 9 + 4 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 269208724 + ... + 269250159.

It is an arithmetic number, because the mean of its divisors is an integer number (1007995030848).

Almost surely, 2^{11155791137994} is an apocalyptic number.

11155791137994 is an abundant number, since it is smaller than the sum of its proper divisors (13036089602358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11155791137994 is a wasteful number, since it uses less digits than its factorization.

11155791137994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538460042 (or 538460039 counting only the distinct ones).

The product of its digits is 10716300, while the sum is 63.

The spelling of 11155791137994 in words is "eleven trillion, one hundred fifty-five billion, seven hundred ninety-one million, one hundred thirty-seven thousand, nine hundred ninety-four".