16043122520 has 16 divisors (see below), whose sum is σ = 36097025760. Its totient is φ = 6417248992.

The previous prime is 16043122519. The next prime is 16043122531. The reversal of 16043122520 is 2522134061.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 16043122520.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200538992 + ... + 200539071.

It is an arithmetic number, because the mean of its divisors is an integer number (2256064110).

Almost surely, 2^16043122520 is an apocalyptic number.

16043122520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16043122520 is an abundant number, since it is smaller than the sum of its proper divisors (20053903240).

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

16043122520 is a wasteful number, since it uses less digits than its factorization.

16043122520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401078074 (or 401078070 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 16043122520 its reverse (2522134061), we get a palindrome (18565256581).

The spelling of 16043122520 in words is "sixteen billion, forty-three million, one hundred twenty-two thousand, five hundred twenty".