1105661655 has 48 divisors (see below), whose sum is σ = 2260936704. Its totient is φ = 489136320.

The previous prime is 1105661653. The next prime is 1105661701. The reversal of 1105661655 is 5561665011.

It is not a de Polignac number, because 1105661655 - 2¹ = 1105661653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1105661653) 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, 46849 + ... + 66378.

It is an arithmetic number, because the mean of its divisors is an integer number (47102848).

Almost surely, 2^1105661655 is an apocalyptic number.

1105661655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1105661655 is an abundant number, since it is smaller than the sum of its proper divisors (1155275049).

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

1105661655 is a wasteful number, since it uses less digits than its factorization.

1105661655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113276 (or 113273 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The square root of 1105661655 is about 33251.4910192009. The cubic root of 1105661655 is about 1034.0481201424.

The spelling of 1105661655 in words is "one billion, one hundred five million, six hundred sixty-one thousand, six hundred fifty-five".