1166055 has 32 divisors (see below), whose sum is σ = 2101248. Its totient is φ = 547200.

The previous prime is 1166041. The next prime is 1166057. The reversal of 1166055 is 5506611.

It is not a de Polignac number, because 1166055 - 2⁶ = 1165991 is a prime.

1166055 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166057) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6010 + ... + 6200.

It is an arithmetic number, because the mean of its divisors is an integer number (65664).

2^1166055 is an apocalyptic number.

1166055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1166055 is a deficient number, since it is larger than the sum of its proper divisors (935193).

1166055 is a wasteful number, since it uses less digits than its factorization.

1166055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 1166055 is about 1079.8402659653. The cubic root of 1166055 is about 105.2542590942.

It can be divided in two parts, 11 and 66055, that added together give a palindrome (66066).

The spelling of 1166055 in words is "one million, one hundred sixty-six thousand, fifty-five".