65546664556 has 12 divisors (see below), whose sum is σ = 114794840160. Its totient is φ = 32748138800.

The previous prime is 65546664539. The next prime is 65546664571.

65546664556 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 65546664556.

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, 6292516 + ... + 6302923.

It is an arithmetic number, because the mean of its divisors is an integer number (9566236680).

Almost surely, 2^65546664556 is an apocalyptic number.

It is an amenable number.

65546664556 is a deficient number, since it is larger than the sum of its proper divisors (49248175604).

65546664556 is a wasteful number, since it uses less digits than its factorization.

65546664556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12596744 (or 12596742 counting only the distinct ones).

The product of its digits is 77760000, while the sum is 58.

The spelling of 65546664556 in words is "sixty-five billion, five hundred forty-six million, six hundred sixty-four thousand, five hundred fifty-six".