506101666 has 8 divisors (see below), whose sum is σ = 867602880. Its totient is φ = 216900708.

The previous prime is 506101643. The next prime is 506101667. The reversal of 506101666 is 666101605.

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

It is a super-2 number, since 2×506101666² = 512277792655951112, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 18075046 + ... + 18075073.

It is an arithmetic number, because the mean of its divisors is an integer number (108450360).

Almost surely, 2^506101666 is an apocalyptic number.

506101666 is a deficient number, since it is larger than the sum of its proper divisors (361501214).

506101666 is a wasteful number, since it uses less digits than its factorization.

506101666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36150128.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 506101666 is about 22496.7034473942. The cubic root of 506101666 is about 796.9160780998.

The spelling of 506101666 in words is "five hundred six million, one hundred one thousand, six hundred sixty-six".