39986159616 has 168 divisors, whose sum is σ = 124396774320. Its totient is φ = 12303138816.

The previous prime is 39986159579. The next prime is 39986159657. The reversal of 39986159616 is 61695168993.

39986159616 is a `hidden beast` number, since 3 + 9 + 9 + 8 + 6 + 1 + 5 + 9 + 616 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 937605 + ... + 979323.

It is an arithmetic number, because the mean of its divisors is an integer number (740456990).

Almost surely, 2^39986159616 is an apocalyptic number.

39986159616 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39986159616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62198387160).

39986159616 is an abundant number, since it is smaller than the sum of its proper divisors (84410614704).

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

39986159616 is a wasteful number, since it uses less digits than its factorization.

39986159616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41764 (or 41737 counting only the distinct ones).

The product of its digits is 18895680, while the sum is 63.

The spelling of 39986159616 in words is "thirty-nine billion, nine hundred eighty-six million, one hundred fifty-nine thousand, six hundred sixteen".