1166045523 has 24 divisors (see below), whose sum is σ = 1644658128. Its totient is φ = 734747328.

The previous prime is 1166045473. The next prime is 1166045533. The reversal of 1166045523 is 3255406611.

It is not a de Polignac number, because 1166045523 - 2⁶ = 1166045459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1166045533) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 602265 + ... + 604197.

It is an arithmetic number, because the mean of its divisors is an integer number (68527422).

Almost surely, 2^1166045523 is an apocalyptic number.

1166045523 is a deficient number, since it is larger than the sum of its proper divisors (478612605).

1166045523 is a wasteful number, since it uses less digits than its factorization.

1166045523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2531 (or 2512 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 1166045523 is about 34147.4087303854. The cubic root of 1166045523 is about 1052.5397394549.

The spelling of 1166045523 in words is "one billion, one hundred sixty-six million, forty-five thousand, five hundred twenty-three".