68666268033 has 24 divisors (see below), whose sum is σ = 113896205280. Its totient is φ = 39425607360.

The previous prime is 68666268017. The next prime is 68666268037. The reversal of 68666268033 is 33086266686.

It is not a de Polignac number, because 68666268033 - 2⁴ = 68666268017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68666268037) 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 23 ways as a sum of consecutive naturals, for example, 18250716 + ... + 18254477.

It is an arithmetic number, because the mean of its divisors is an integer number (4745675220).

Almost surely, 2^68666268033 is an apocalyptic number.

It is an amenable number.

68666268033 is a deficient number, since it is larger than the sum of its proper divisors (45229937247).

68666268033 is a wasteful number, since it uses less digits than its factorization.

68666268033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36505229 (or 36505226 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 54.

The spelling of 68666268033 in words is "sixty-eight billion, six hundred sixty-six million, two hundred sixty-eight thousand, thirty-three".