1666316264 has 32 divisors (see below), whose sum is σ = 3337888800. Its totient is φ = 777522240.

The previous prime is 1666316261. The next prime is 1666316273. The reversal of 1666316264 is 4626136661.

It is not an unprimeable number, because it can be changed into a prime (1666316261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71627 + ... + 91994.

It is an arithmetic number, because the mean of its divisors is an integer number (104309025).

Almost surely, 2^1666316264 is an apocalyptic number.

It is an amenable number.

1666316264 is an abundant number, since it is smaller than the sum of its proper divisors (1671572536).

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

1666316264 is a wasteful number, since it uses less digits than its factorization.

1666316264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163713 (or 163709 counting only the distinct ones).

The product of its digits is 186624, while the sum is 41.

The square root of 1666316264 is about 40820.5372821084. The cubic root of 1666316264 is about 1185.5480060131.

The spelling of 1666316264 in words is "one billion, six hundred sixty-six million, three hundred sixteen thousand, two hundred sixty-four".