67663436676 has 72 divisors (see below), whose sum is σ = 173771075520. Its totient is φ = 20476653120.

The previous prime is 67663436657. The next prime is 67663436681.

67663436676 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1068385 + ... + 1129943.

It is an arithmetic number, because the mean of its divisors is an integer number (2413487160).

Almost surely, 2^67663436676 is an apocalyptic number.

67663436676 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67663436676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86885537760).

67663436676 is an abundant number, since it is smaller than the sum of its proper divisors (106107638844).

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

67663436676 is a wasteful number, since it uses less digits than its factorization.

67663436676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62345 (or 62332 counting only the distinct ones).

The product of its digits is 82301184, while the sum is 60.

The spelling of 67663436676 in words is "sixty-seven billion, six hundred sixty-three million, four hundred thirty-six thousand, six hundred seventy-six".