505606515066 has 48 divisors (see below), whose sum is σ = 1154041668000. Its totient is φ = 159540045984.

The previous prime is 505606515049. The next prime is 505606515079. The reversal of 505606515066 is 660515606505.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142116 + ... + 1015583.

It is an arithmetic number, because the mean of its divisors is an integer number (24042534750).

Almost surely, 2^505606515066 is an apocalyptic number.

505606515066 is an abundant number, since it is smaller than the sum of its proper divisors (648435152934).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505606515066 is a wasteful number, since it uses less digits than its factorization.

505606515066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159003 (or 1159000 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 45.

The spelling of 505606515066 in words is "five hundred five billion, six hundred six million, five hundred fifteen thousand, sixty-six".