1105505568 has 36 divisors (see below), whose sum is σ = 3143782278. Its totient is φ = 368501760.

The previous prime is 1105505567. The next prime is 1105505581. The reversal of 1105505568 is 8655055011.

It can be written as a sum of positive squares in only one way, i.e., 1018120464 + 87385104 = 31908^2 + 9348^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1105505567) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1918993 + ... + 1919568.

Almost surely, 2^1105505568 is an apocalyptic number.

1105505568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1105505568 is an abundant number, since it is smaller than the sum of its proper divisors (2038276710).

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

1105505568 is a wasteful number, since it uses less digits than its factorization.

1105505568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3838577 (or 3838566 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 36.

The square root of 1105505568 is about 33249.1438686773. The cubic root of 1105505568 is about 1033.9994587628. Note that the first 3 decimals are identical.

The spelling of 1105505568 in words is "one billion, one hundred five million, five hundred five thousand, five hundred sixty-eight".