67667662668 has 48 divisors (see below), whose sum is σ = 165047644160. Its totient is φ = 21551961600.

The previous prime is 67667662627. The next prime is 67667662669. The reversal of 67667662668 is 86626676676.

It is a junction number, because it is equal to n+sod(n) for n = 67667662599 and 67667662608.

It is not an unprimeable number, because it can be changed into a prime (67667662669) 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 15 ways as a sum of consecutive naturals, for example, 1121893 + ... + 1180668.

Almost surely, 2^67667662668 is an apocalyptic number.

It is an amenable number.

67667662668 is an abundant number, since it is smaller than the sum of its proper divisors (97379981492).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67667662668 is a wasteful number, since it uses less digits than its factorization.

67667662668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2302678 (or 2302676 counting only the distinct ones).

The product of its digits is 219469824, while the sum is 66.

The spelling of 67667662668 in words is "sixty-seven billion, six hundred sixty-seven million, six hundred sixty-two thousand, six hundred sixty-eight".