16539873522480 has 640 divisors, whose sum is σ = 74116581949440. Its totient is φ = 3287427517440.

The previous prime is 16539873522443. The next prime is 16539873522527. The reversal of 16539873522480 is 8422537893561.

16539873522480 is a `hidden beast` number, since 1 + 6 + 5 + 39 + 8 + 7 + 352 + 248 + 0 = 666.

16539873522480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×16539873522480² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1663489 + ... + 5987231.

It is an arithmetic number, because the mean of its divisors is an integer number (115807159296).

It is a 1-persistent number, because it is pandigital, but 2⋅16539873522480 = 33079747044960 is not.

Almost surely, 2^{16539873522480} is an apocalyptic number.

16539873522480 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 16539873522480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37058290974720).

16539873522480 is an abundant number, since it is smaller than the sum of its proper divisors (57576708426960).

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

16539873522480 is a wasteful number, since it uses less digits than its factorization.

16539873522480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4323806 (or 4323794 counting only the distinct ones).

The product of its (nonzero) digits is 87091200, while the sum is 63.

The spelling of 16539873522480 in words is "sixteen trillion, five hundred thirty-nine billion, eight hundred seventy-three million, five hundred twenty-two thousand, four hundred eighty".