506512666 has 32 divisors (see below), whose sum is σ = 859351680. Its totient is φ = 221793600.

The previous prime is 506512663. The next prime is 506512711. The reversal of 506512666 is 666215605.

It is not an unprimeable number, because it can be changed into a prime (506512661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 523315 + ... + 524281.

It is an arithmetic number, because the mean of its divisors is an integer number (26854740).

Almost surely, 2^506512666 is an apocalyptic number.

506512666 is a deficient number, since it is larger than the sum of its proper divisors (352839014).

506512666 is a wasteful number, since it uses less digits than its factorization.

506512666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1830.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 506512666 is about 22505.8362652891. The cubic root of 506512666 is about 797.1317422032.

The spelling of 506512666 in words is "five hundred six million, five hundred twelve thousand, six hundred sixty-six".