56665476205 has 16 divisors (see below), whose sum is σ = 73420462080. Its totient is φ = 41735999808.

The previous prime is 56665476191. The next prime is 56665476247. The reversal of 56665476205 is 50267456665.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56665476205 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1113195 + ... + 1162984.

It is an arithmetic number, because the mean of its divisors is an integer number (4588778880).

Almost surely, 2^56665476205 is an apocalyptic number.

It is an amenable number.

56665476205 is a deficient number, since it is larger than the sum of its proper divisors (16754985875).

56665476205 is a wasteful number, since it uses less digits than its factorization.

56665476205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2276580.

The product of its (nonzero) digits is 9072000, while the sum is 52.

The spelling of 56665476205 in words is "fifty-six billion, six hundred sixty-five million, four hundred seventy-six thousand, two hundred five".