506165766 has 8 divisors (see below), whose sum is σ = 1012331544. Its totient is φ = 168721920.

The previous prime is 506165743. The next prime is 506165773. The reversal of 506165766 is 667561605.

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

506165766 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

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, 42180475 + ... + 42180486.

It is an arithmetic number, because the mean of its divisors is an integer number (126541443).

Almost surely, 2^506165766 is an apocalyptic number.

506165766 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

506165766 is a wasteful number, since it uses less digits than its factorization.

506165766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84360966.

The product of its (nonzero) digits is 226800, while the sum is 42.

The square root of 506165766 is about 22498.1280554627. The cubic root of 506165766 is about 796.9497209872.

The spelling of 506165766 in words is "five hundred six million, one hundred sixty-five thousand, seven hundred sixty-six".