39660568340 has 24 divisors (see below), whose sum is σ = 83375181792. Its totient is φ = 15847467680.

The previous prime is 39660568331. The next prime is 39660568379. The reversal of 39660568340 is 4386506693.

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, 1028066 + ... + 1065945.

It is an arithmetic number, because the mean of its divisors is an integer number (3473965908).

Almost surely, 2^39660568340 is an apocalyptic number.

It is an amenable number.

39660568340 is an abundant number, since it is smaller than the sum of its proper divisors (43714613452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39660568340 is a wasteful number, since it uses less digits than its factorization.

39660568340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2094967 (or 2094965 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 50.

The spelling of 39660568340 in words is "thirty-nine billion, six hundred sixty million, five hundred sixty-eight thousand, three hundred forty".