66673333674 has 24 divisors (see below), whose sum is σ = 146437781412. Its totient is φ = 21919999680.

The previous prime is 66673333663. The next prime is 66673333679. The reversal of 66673333674 is 47633337666.

It can be written as a sum of positive squares in 2 ways, for example, as 59758247025 + 6915086649 = 244455^2 + 83157^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 66673333674.

It is not an unprimeable number, because it can be changed into a prime (66673333679) 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, 25369057 + ... + 25371684.

Almost surely, 2^66673333674 is an apocalyptic number.

66673333674 is an abundant number, since it is smaller than the sum of its proper divisors (79764447738).

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

66673333674 is a wasteful number, since it uses less digits than its factorization.

66673333674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50740822 (or 50740819 counting only the distinct ones).

The product of its digits is 20575296, while the sum is 54.

The spelling of 66673333674 in words is "sixty-six billion, six hundred seventy-three million, three hundred thirty-three thousand, six hundred seventy-four".