506465566 has 16 divisors (see below), whose sum is σ = 793494144. Its totient is φ = 241988824.

The previous prime is 506465563. The next prime is 506465591. The reversal of 506465566 is 665564605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506465563) 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 7 ways as a sum of consecutive naturals, for example, 48765 + ... + 58231.

It is an arithmetic number, because the mean of its divisors is an integer number (49593384).

Almost surely, 2^506465566 is an apocalyptic number.

506465566 is a deficient number, since it is larger than the sum of its proper divisors (287028578).

506465566 is a wasteful number, since it uses less digits than its factorization.

506465566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10655.

The product of its (nonzero) digits is 648000, while the sum is 43.

The square root of 506465566 is about 22504.7898457195. The cubic root of 506465566 is about 797.1070333319.

The spelling of 506465566 in words is "five hundred six million, four hundred sixty-five thousand, five hundred sixty-six".