66674855331 has 12 divisors (see below), whose sum is σ = 110066427952. Its totient is φ = 38099917296.

The previous prime is 66674855311. The next prime is 66674855339. The reversal of 66674855331 is 13355847666.

It is not a de Polignac number, because 66674855331 - 2¹¹ = 66674853283 is a prime.

It is a super-2 number, since 2×66674855331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66674855339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 529165456 + ... + 529165581.

Almost surely, 2^66674855331 is an apocalyptic number.

66674855331 is a deficient number, since it is larger than the sum of its proper divisors (43391572621).

66674855331 is a wasteful number, since it uses less digits than its factorization.

66674855331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058331050 (or 1058331047 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 54.

The spelling of 66674855331 in words is "sixty-six billion, six hundred seventy-four million, eight hundred fifty-five thousand, three hundred thirty-one".