505545660056 has 16 divisors (see below), whose sum is σ = 955133978040. Its totient is φ = 250843265920.

The previous prime is 505545659963. The next prime is 505545660157. The reversal of 505545660056 is 650066545505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241194401 + ... + 241196496.

Almost surely, 2^505545660056 is an apocalyptic number.

It is an amenable number.

505545660056 is a deficient number, since it is larger than the sum of its proper divisors (449588317984).

505545660056 is a wasteful number, since it uses less digits than its factorization.

505545660056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482391034 (or 482391030 counting only the distinct ones).

The product of its (nonzero) digits is 2700000, while the sum is 47.

The spelling of 505545660056 in words is "five hundred five billion, five hundred forty-five million, six hundred sixty thousand, fifty-six".