66287676 has 48 divisors (see below), whose sum is σ = 190367744. Its totient is φ = 17482176.

The previous prime is 66287671. The next prime is 66287687. The reversal of 66287676 is 67678266.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66287671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29260 + ... + 31443.

Almost surely, 2^66287676 is an apocalyptic number.

It is an amenable number.

66287676 is an abundant number, since it is smaller than the sum of its proper divisors (124080068).

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

66287676 is a wasteful number, since it uses less digits than its factorization.

66287676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60730 (or 60728 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 48.

The square root of 66287676 is about 8141.7243873764. The cubic root of 66287676 is about 404.7103064750.

The spelling of 66287676 in words is "sixty-six million, two hundred eighty-seven thousand, six hundred seventy-six".