16003920493242 has 128 divisors (see below), whose sum is σ = 40066917580800. Its totient is φ = 4691121739200.

The previous prime is 16003920493217. The next prime is 16003920493277. The reversal of 16003920493242 is 24239402930061.

16003920493242 is a `hidden beast` number, since 1 + 600 + 3 + 9 + 2 + 0 + 4 + 9 + 32 + 4 + 2 = 666.

It is a super-2 number, since 2×16003920493242² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 40997859 + ... + 41386377.

It is an arithmetic number, because the mean of its divisors is an integer number (313022793600).

Almost surely, 2^{16003920493242} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16003920493242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20033458790400).

16003920493242 is an abundant number, since it is smaller than the sum of its proper divisors (24062997087558).

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

16003920493242 is a wasteful number, since it uses less digits than its factorization.

16003920493242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390809 (or 390803 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

The spelling of 16003920493242 in words is "sixteen trillion, three billion, nine hundred twenty million, four hundred ninety-three thousand, two hundred forty-two".