39980039616 has 448 divisors, whose sum is σ = 135565286400. Its totient is φ = 11578152960.

The previous prime is 39980039591. The next prime is 39980039641. The reversal of 39980039616 is 61693008993.

It is an interprime number because it is at equal distance from previous prime (39980039591) and next prime (39980039641).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 35411340 + ... + 35412468.

Almost surely, 2^39980039616 is an apocalyptic number.

39980039616 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 39980039616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67782643200).

39980039616 is an abundant number, since it is smaller than the sum of its proper divisors (95585246784).

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

39980039616 is a wasteful number, since it uses less digits than its factorization.

39980039616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196 (or 1168 counting only the distinct ones).

The product of its (nonzero) digits is 1889568, while the sum is 54.

The spelling of 39980039616 in words is "thirty-nine billion, nine hundred eighty million, thirty-nine thousand, six hundred sixteen".