66670000373407 has 4 divisors (see below), whose sum is σ = 69568696041840. Its totient is φ = 63771304704976.

The previous prime is 66670000373381. The next prime is 66670000373423. The reversal of 66670000373407 is 70437300007666.

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-66670000373407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66670000373107) 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, 1449347834182 + ... + 1449347834227.

It is an arithmetic number, because the mean of its divisors is an integer number (17392174010460).

Almost surely, 2^{66670000373407} is an apocalyptic number.

66670000373407 is a deficient number, since it is larger than the sum of its proper divisors (2898695668433).

66670000373407 is a wasteful number, since it uses less digits than its factorization.

66670000373407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2898695668432.

The product of its (nonzero) digits is 2667168, while the sum is 49.

The spelling of 66670000373407 in words is "sixty-six trillion, six hundred seventy billion, three hundred seventy-three thousand, four hundred seven".