66973033670 has 16 divisors (see below), whose sum is σ = 120558514320. Its totient is φ = 26787645984.

The previous prime is 66973033649. The next prime is 66973033681. The reversal of 66973033670 is 7633037966.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7892 + ... + 366071.

It is an arithmetic number, because the mean of its divisors is an integer number (7534907145).

Almost surely, 2^66973033670 is an apocalyptic number.

66973033670 is a deficient number, since it is larger than the sum of its proper divisors (53585480650).

66973033670 is a wasteful number, since it uses less digits than its factorization.

66973033670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391879.

The product of its (nonzero) digits is 2571912, while the sum is 50.

The spelling of 66973033670 in words is "sixty-six billion, nine hundred seventy-three million, thirty-three thousand, six hundred seventy".