1165055055 has 16 divisors (see below), whose sum is σ = 1881512064. Its totient is φ = 615554720.

The previous prime is 1165055011. The next prime is 1165055119. The reversal of 1165055055 is 5505505611.

It is not a de Polignac number, because 1165055055 - 2⁶ = 1165054991 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 361341 + ... + 364550.

It is an arithmetic number, because the mean of its divisors is an integer number (117594504).

Almost surely, 2^1165055055 is an apocalyptic number.

1165055055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1165055055 is a deficient number, since it is larger than the sum of its proper divisors (716457009).

1165055055 is a wasteful number, since it uses less digits than its factorization.

1165055055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726006.

The product of its (nonzero) digits is 18750, while the sum is 33.

The square root of 1165055055 is about 34132.9028211783. The cubic root of 1165055055 is about 1052.2416372434.

The spelling of 1165055055 in words is "one billion, one hundred sixty-five million, fifty-five thousand, fifty-five".