1166045564 has 6 divisors (see below), whose sum is σ = 2040579744. Its totient is φ = 583022780.

The previous prime is 1166045557. The next prime is 1166045581. The reversal of 1166045564 is 4655406611.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145755692 + ... + 145755699.

It is an arithmetic number, because the mean of its divisors is an integer number (340096624).

Almost surely, 2^1166045564 is an apocalyptic number.

It is an amenable number.

1166045564 is a deficient number, since it is larger than the sum of its proper divisors (874534180).

1166045564 is a wasteful number, since it uses less digits than its factorization.

1166045564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291511395 (or 291511393 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 1166045564 is about 34147.4093307238. The cubic root of 1166045564 is about 1052.5397517912.

The spelling of 1166045564 in words is "one billion, one hundred sixty-six million, forty-five thousand, five hundred sixty-four".