16565375031216 has 160 divisors (see below), whose sum is σ = 47806536400128. Its totient is φ = 4900095083520.

The previous prime is 16565375031211. The next prime is 16565375031277. The reversal of 16565375031216 is 61213057356561.

It is not an unprimeable number, because it can be changed into a prime (16565375031211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4010415 + ... + 7015281.

Almost surely, 2^{16565375031216} is an apocalyptic number.

16565375031216 is a gapful number since it is divisible by the number (16) 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 16565375031216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23903268200064).

16565375031216 is an abundant number, since it is smaller than the sum of its proper divisors (31241161368912).

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

16565375031216 is a wasteful number, since it uses less digits than its factorization.

16565375031216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3005139 (or 3005133 counting only the distinct ones).

The product of its (nonzero) digits is 3402000, while the sum is 51.

The spelling of 16565375031216 in words is "sixteen trillion, five hundred sixty-five billion, three hundred seventy-five million, thirty-one thousand, two hundred sixteen".