4521164666 has 8 divisors (see below), whose sum is σ = 6782264724. Its totient is φ = 2260409760.

The previous prime is 4521164653. The next prime is 4521164689. The reversal of 4521164666 is 6664611254.

It can be written as a sum of positive squares in 2 ways, for example, as 4419457441 + 101707225 = 66479^2 + 10085^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50585 + ... + 107708.

Almost surely, 2^4521164666 is an apocalyptic number.

4521164666 is a deficient number, since it is larger than the sum of its proper divisors (2261100058).

4521164666 is a wasteful number, since it uses less digits than its factorization.

4521164666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172576.

The product of its digits is 207360, while the sum is 41.

The square root of 4521164666 is about 67239.6063789788. The cubic root of 4521164666 is about 1653.5478804330.

The spelling of 4521164666 in words is "four billion, five hundred twenty-one million, one hundred sixty-four thousand, six hundred sixty-six".