68555455586 has 48 divisors (see below), whose sum is σ = 115971227064. Its totient is φ = 30276060672.

The previous prime is 68555455537. The next prime is 68555455589.

68555455586 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 64416978025 + 4138477561 = 253805^2 + 64331^2 .

It is not an unprimeable number, because it can be changed into a prime (68555455589) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 917300 + ... + 989216.

Almost surely, 2^68555455586 is an apocalyptic number.

68555455586 is a deficient number, since it is larger than the sum of its proper divisors (47415771478).

68555455586 is a wasteful number, since it uses less digits than its factorization.

68555455586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72035 (or 72012 counting only the distinct ones).

The product of its digits is 144000000, while the sum is 62.

The spelling of 68555455586 in words is "sixty-eight billion, five hundred fifty-five million, four hundred fifty-five thousand, five hundred eighty-six".