11110155551055 has 48 divisors (see below), whose sum is σ = 21404677091616. Its totient is φ = 5285105429760.

The previous prime is 11110155551051. The next prime is 11110155551123. The reversal of 11110155551055 is 55015555101111.

11110155551055 is a `hidden beast` number, since 1 + 1 + 1 + 1 + 0 + 1 + 55 + 551 + 0 + 55 = 666.

It is not a de Polignac number, because 11110155551055 - 2² = 11110155551051 is a prime.

It is a super-2 number, since 2×11110155551055² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11110155551051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 211716772 + ... + 211769241.

It is an arithmetic number, because the mean of its divisors is an integer number (445930772742).

Almost surely, 2^{11110155551055} is an apocalyptic number.

11110155551055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11110155551055 is a deficient number, since it is larger than the sum of its proper divisors (10294521540561).

11110155551055 is a wasteful number, since it uses less digits than its factorization.

11110155551055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423486088 (or 423486085 counting only the distinct ones).

The product of its (nonzero) digits is 15625, while the sum is 36.

The spelling of 11110155551055 in words is "eleven trillion, one hundred ten billion, one hundred fifty-five million, five hundred fifty-one thousand, fifty-five".