66320003713 has 8 divisors (see below), whose sum is σ = 70229380320. Its totient is φ = 62411538240.

The previous prime is 66320003707. The next prime is 66320003741. The reversal of 66320003713 is 31730002366.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66320003713 - 2⁹ = 66320003201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66320003753) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74983 + ... + 371836.

It is an arithmetic number, because the mean of its divisors is an integer number (8778672540).

Almost surely, 2^66320003713 is an apocalyptic number.

It is an amenable number.

66320003713 is a deficient number, since it is larger than the sum of its proper divisors (3909376607).

66320003713 is a wasteful number, since it uses less digits than its factorization.

66320003713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455567.

The product of its (nonzero) digits is 13608, while the sum is 31.

The spelling of 66320003713 in words is "sixty-six billion, three hundred twenty million, three thousand, seven hundred thirteen".