16000005999980 has 96 divisors (see below), whose sum is σ = 35111433994560. Its totient is φ = 6118673899520.

The previous prime is 16000005999979. The next prime is 16000006000063. The reversal of 16000005999980 is 8999950000061.

16000005999980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35718836 + ... + 36164004.

It is an arithmetic number, because the mean of its divisors is an integer number (365744104110).

Almost surely, 2^{16000005999980} is an apocalyptic number.

16000005999980 is a gapful number since it is divisible by the number (10) 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 16000005999980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17555716997280).

16000005999980 is an abundant number, since it is smaller than the sum of its proper divisors (19111427994580).

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

16000005999980 is a wasteful number, since it uses less digits than its factorization.

16000005999980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446099 (or 446097 counting only the distinct ones).

The product of its (nonzero) digits is 1574640, while the sum is 56.

The spelling of 16000005999980 in words is "sixteen trillion, five million, nine hundred ninety-nine thousand, nine hundred eighty".