66373003667 has 4 divisors (see below), whose sum is σ = 66720506496. Its totient is φ = 66025500840.

The previous prime is 66373003633. The next prime is 66373003679. The reversal of 66373003667 is 76630037366.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66373003667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66373023667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173751128 + ... + 173751509.

It is an arithmetic number, because the mean of its divisors is an integer number (16680126624).

Almost surely, 2^66373003667 is an apocalyptic number.

66373003667 is a deficient number, since it is larger than the sum of its proper divisors (347502829).

66373003667 is a wasteful number, since it uses less digits than its factorization.

66373003667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347502828.

The product of its (nonzero) digits is 1714608, while the sum is 47.

The spelling of 66373003667 in words is "sixty-six billion, three hundred seventy-three million, three thousand, six hundred sixty-seven".