16565501502112 has 96 divisors (see below), whose sum is σ = 35371652158080. Its totient is φ = 7613181649920.

The previous prime is 16565501502037. The next prime is 16565501502119. The reversal of 16565501502112 is 21120510556561.

It is not an unprimeable number, because it can be changed into a prime (16565501502119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2664438 + ... + 6342730.

It is an arithmetic number, because the mean of its divisors is an integer number (368454709980).

Almost surely, 2^{16565501502112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16565501502112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17685826079040).

16565501502112 is an abundant number, since it is smaller than the sum of its proper divisors (18806150655968).

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

16565501502112 is a wasteful number, since it uses less digits than its factorization.

16565501502112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3678566 (or 3678558 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 40.

The spelling of 16565501502112 in words is "sixteen trillion, five hundred sixty-five billion, five hundred one million, five hundred two thousand, one hundred twelve".