505156066 has 8 divisors (see below), whose sum is σ = 758074284. Its totient is φ = 252464640.

The previous prime is 505156063. The next prime is 505156087. The reversal of 505156066 is 660651505.

It can be written as a sum of positive squares in 2 ways, for example, as 474586225 + 30569841 = 21785^2 + 5529^2 .

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

It is not an unprimeable number, because it can be changed into a prime (505156063) 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 3 ways as a sum of consecutive naturals, for example, 51015 + ... + 60106.

Almost surely, 2^505156066 is an apocalyptic number.

505156066 is a deficient number, since it is larger than the sum of its proper divisors (252918218).

505156066 is a wasteful number, since it uses less digits than its factorization.

505156066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113396.

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 505156066 is about 22475.6772089297. The cubic root of 505156066 is about 796.4194495228.

The spelling of 505156066 in words is "five hundred five million, one hundred fifty-six thousand, sixty-six".