1105605100055 has 16 divisors (see below), whose sum is σ = 1373018018400. Its totient is φ = 853646935680.

The previous prime is 1105605100051. The next prime is 1105605100099. The reversal of 1105605100055 is 5500015065011.

It is a happy number.

It is not a de Polignac number, because 1105605100055 - 2² = 1105605100051 is a prime.

It is a super-2 number, since 2×1105605100055² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1105605100051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1139300 + ... + 1873289.

It is an arithmetic number, because the mean of its divisors is an integer number (85813626150).

Almost surely, 2^{1105605100055} is an apocalyptic number.

1105605100055 is a deficient number, since it is larger than the sum of its proper divisors (267412918345).

1105605100055 is a wasteful number, since it uses less digits than its factorization.

1105605100055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3015154.

The product of its (nonzero) digits is 3750, while the sum is 29.

The spelling of 1105605100055 in words is "one trillion, one hundred five billion, six hundred five million, one hundred thousand, fifty-five".