56065660605 has 12 divisors (see below), whose sum is σ = 97180478460. Its totient is φ = 29901685632.

The previous prime is 56065660601. The next prime is 56065660613. The reversal of 56065660605 is 50606656065.

It can be written as a sum of positive squares in 2 ways, for example, as 33989347044 + 22076313561 = 184362^2 + 148581^2 .

It is not a de Polignac number, because 56065660605 - 2² = 56065660601 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1245903569 = 56065660605 / (5 + 6 + 0 + 6 + 5 + 6 + 6 + 0 + 6 + 0 + 5).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56065660601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 622951740 + ... + 622951829.

It is an arithmetic number, because the mean of its divisors is an integer number (8098373205).

Almost surely, 2^56065660605 is an apocalyptic number.

It is an amenable number.

56065660605 is a deficient number, since it is larger than the sum of its proper divisors (41114817855).

56065660605 is a wasteful number, since it uses less digits than its factorization.

56065660605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245903580 (or 1245903577 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 45.

The spelling of 56065660605 in words is "fifty-six billion, sixty-five million, six hundred sixty thousand, six hundred five".