1150111105605 has 64 divisors (see below), whose sum is σ = 2549164032000. Its totient is φ = 477968247360.

The previous prime is 1150111105603. The next prime is 1150111105613. The reversal of 1150111105605 is 5065011110511.

1150111105605 is a `hidden beast` number, since 1 + 1 + 50 + 1 + 1 + 1 + 1 + 0 + 5 + 605 = 666.

It is not a de Polignac number, because 1150111105605 - 2¹ = 1150111105603 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1150111105601) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 55310005 + ... + 55330794.

It is an arithmetic number, because the mean of its divisors is an integer number (39830688000).

Almost surely, 2^{1150111105605} is an apocalyptic number.

1150111105605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1150111105605 is an abundant number, since it is smaller than the sum of its proper divisors (1399052926395).

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

1150111105605 is a wasteful number, since it uses less digits than its factorization.

1150111105605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110640831 (or 110640825 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 27.

The spelling of 1150111105605 in words is "one trillion, one hundred fifty billion, one hundred eleven million, one hundred five thousand, six hundred five".