11111601055 has 8 divisors (see below), whose sum is σ = 13334954544. Its totient is φ = 8888592000.

The previous prime is 11111600989. The next prime is 11111601079. The reversal of 11111601055 is 55010611111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11111601055 - 2³³ = 2521666463 is a prime.

It is a super-2 number, since 2×11111601055² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent 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, 8826 + ... + 149335.

It is an arithmetic number, because the mean of its divisors is an integer number (1666869318).

Almost surely, 2^11111601055 is an apocalyptic number.

11111601055 is a deficient number, since it is larger than the sum of its proper divisors (2223353489).

11111601055 is a wasteful number, since it uses less digits than its factorization.

11111601055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172217.

The product of its (nonzero) digits is 150, while the sum is 22.

The spelling of 11111601055 in words is "eleven billion, one hundred eleven million, six hundred one thousand, fifty-five".