61066560056 has 16 divisors (see below), whose sum is σ = 114974906640. Its totient is φ = 30406584960.

The previous prime is 61066560007. The next prime is 61066560097. The reversal of 61066560056 is 65006566016.

It is a junction number, because it is equal to n+sod(n) for n = 61066559995 and 61066560022.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 15834836 + ... + 15838691.

It is an arithmetic number, because the mean of its divisors is an integer number (7185931665).

Almost surely, 2^61066560056 is an apocalyptic number.

It is an amenable number.

61066560056 is a deficient number, since it is larger than the sum of its proper divisors (53908346584).

61066560056 is a wasteful number, since it uses less digits than its factorization.

61066560056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31673774 (or 31673770 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 41.

The spelling of 61066560056 in words is "sixty-one billion, sixty-six million, five hundred sixty thousand, fifty-six".