66673340067 has 4 divisors (see below), whose sum is σ = 88897786760. Its totient is φ = 44448893376.

The previous prime is 66673340053. The next prime is 66673340101. The reversal of 66673340067 is 76004337666.

66673340067 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 66673340067 - 2²³ = 66664951459 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66673339998 and 66673340025.

It is not an unprimeable number, because it can be changed into a prime (66673340267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11112223342 + ... + 11112223347.

It is an arithmetic number, because the mean of its divisors is an integer number (22224446690).

Almost surely, 2^66673340067 is an apocalyptic number.

66673340067 is a deficient number, since it is larger than the sum of its proper divisors (22224446693).

66673340067 is a wasteful number, since it uses less digits than its factorization.

66673340067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22224446692.

The product of its (nonzero) digits is 2286144, while the sum is 48.

The spelling of 66673340067 in words is "sixty-six billion, six hundred seventy-three million, three hundred forty thousand, sixty-seven".