16539812044000 has 384 divisors, whose sum is σ = 48190871199744. Its totient is φ = 5459374080000.

The previous prime is 16539812043983. The next prime is 16539812044037. The reversal of 16539812044000 is 44021893561.

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, 167474635 + ... + 167573365.

It is an arithmetic number, because the mean of its divisors is an integer number (125497060416).

Almost surely, 2^{16539812044000} is an apocalyptic number.

16539812044000 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 16539812044000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24095435599872).

16539812044000 is an abundant number, since it is smaller than the sum of its proper divisors (31651059155744).

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

16539812044000 is a wasteful number, since it uses less digits than its factorization.

16539812044000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98987 (or 98969 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 16539812044000 in words is "sixteen trillion, five hundred thirty-nine billion, eight hundred twelve million, forty-four thousand".