1166033664 has 72 divisors (see below), whose sum is σ = 3448187120. Its totient is φ = 388675584.

The previous prime is 1166033663. The next prime is 1166033681. The reversal of 1166033664 is 4663306611.

1166033664 is a `hidden beast` number, since 1 + 16 + 603 + 36 + 6 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

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 (1166033663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77437 + ... + 91260.

Almost surely, 2^1166033664 is an apocalyptic number.

It is an amenable number.

1166033664 is an abundant number, since it is smaller than the sum of its proper divisors (2282153456).

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

1166033664 is an equidigital number, since it uses as much as digits as its factorization.

1166033664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168722 (or 168702 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 1166033664 is about 34147.2350857284. The cubic root of 1166033664 is about 1052.5361712377.

The spelling of 1166033664 in words is "one billion, one hundred sixty-six million, thirty-three thousand, six hundred sixty-four".