67666676 has 96 divisors (see below), whose sum is σ = 160849920. Its totient is φ = 24105600.

The previous prime is 67666639. The next prime is 67666691.

67666676 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 181226 + ... + 181598.

It is an arithmetic number, because the mean of its divisors is an integer number (1675520).

Almost surely, 2^67666676 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67666676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80424960).

67666676 is an abundant number, since it is smaller than the sum of its proper divisors (93183244).

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

67666676 is a wasteful number, since it uses less digits than its factorization.

67666676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445 (or 443 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 50.

The square root of 67666676 is about 8225.9756868107. The cubic root of 67666676 is about 407.4974990751.

The spelling of 67666676 in words is "sixty-seven million, six hundred sixty-six thousand, six hundred seventy-six".