506101665 has 16 divisors (see below), whose sum is σ = 810171648. Its totient is φ = 269784576.

The previous prime is 506101643. The next prime is 506101667. The reversal of 506101665 is 566101605.

It is not a de Polignac number, because 506101665 - 2¹⁰ = 506100641 is a prime.

It is a super-2 number, since 2×506101665² = 512277790631544450, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (506101667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26929 + ... + 41681.

It is an arithmetic number, because the mean of its divisors is an integer number (50635728).

Almost surely, 2^506101665 is an apocalyptic number.

It is an amenable number.

506101665 is a deficient number, since it is larger than the sum of its proper divisors (304069983).

506101665 is a wasteful number, since it uses less digits than its factorization.

506101665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17048.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 506101665 is about 22496.7034251688. The cubic root of 506101665 is about 796.9160775749.

The spelling of 506101665 in words is "five hundred six million, one hundred one thousand, six hundred sixty-five".