39379231999966 has 16 divisors (see below), whose sum is σ = 59235463076400. Its totient is φ = 19634109667200.

The previous prime is 39379231999957. The next prime is 39379231999969. The reversal of 39379231999966 is 66999913297393.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39379231999969) 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, 5545041 + ... + 10464508.

It is an arithmetic number, because the mean of its divisors is an integer number (3702216442275).

Almost surely, 2^{39379231999966} is an apocalyptic number.

39379231999966 is a deficient number, since it is larger than the sum of its proper divisors (19856231076434).

39379231999966 is a wasteful number, since it uses less digits than its factorization.

39379231999966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16013019.

The product of its digits is 7231849128, while the sum is 85.

The spelling of 39379231999966 in words is "thirty-nine trillion, three hundred seventy-nine billion, two hundred thirty-one million, nine hundred ninety-nine thousand, nine hundred sixty-six".