1111551500055 has 32 divisors (see below), whose sum is σ = 1838603821824. Its totient is φ = 573071256576.

The previous prime is 1111551500029. The next prime is 1111551500113. The reversal of 1111551500055 is 5500051551111.

It is a happy number.

It is not a de Polignac number, because 1111551500055 - 2⁵ = 1111551500023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1111551499995 and 1111551500031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8820609 + ... + 8945738.

It is an arithmetic number, because the mean of its divisors is an integer number (57456369432).

Almost surely, 2^{1111551500055} is an apocalyptic number.

1111551500055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1111551500055 is a deficient number, since it is larger than the sum of its proper divisors (727052321769).

1111551500055 is a wasteful number, since it uses less digits than its factorization.

1111551500055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17766495.

The product of its (nonzero) digits is 3125, while the sum is 30.

The spelling of 1111551500055 in words is "one trillion, one hundred eleven billion, five hundred fifty-one million, five hundred thousand, fifty-five".