39996000000 has 756 divisors, whose sum is σ = 158807185992. Its totient is φ = 9600000000.

The previous prime is 39995999971. The next prime is 39996000059. The reversal of 39996000000 is 69993.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 395999950 + ... + 396000050.

Almost surely, 2^39996000000 is an apocalyptic number.

39996000000 is a gapful number since it is divisible by the number (30) 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 39996000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79403592996).

39996000000 is an abundant number, since it is smaller than the sum of its proper divisors (118811185992).

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

39996000000 is an equidigital number, since it uses as much as digits as its factorization.

39996000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 36.

Adding to 39996000000 its reverse (69993), we get a palindrome (39996069993).

The spelling of 39996000000 in words is "thirty-nine billion, nine hundred ninety-six million", and thus it is an aban number.