16023642016 has 48 divisors (see below), whose sum is σ = 32096773800. Its totient is φ = 7872353280.

The previous prime is 16023642013. The next prime is 16023642023. The reversal of 16023642016 is 61024632061.

It can be written as a sum of positive squares in 4 ways, for example, as 6431398416 + 9592243600 = 80196^2 + 97940^2 .

It is not an unprimeable number, because it can be changed into a prime (16023642013) 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 7 ways as a sum of consecutive naturals, for example, 2176710 + ... + 2184058.

Almost surely, 2^16023642016 is an apocalyptic number.

16023642016 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 16023642016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16048386900).

16023642016 is an abundant number, since it is smaller than the sum of its proper divisors (16073131784).

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

16023642016 is a wasteful number, since it uses less digits than its factorization.

16023642016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8537 (or 8529 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 16023642016 in words is "sixteen billion, twenty-three million, six hundred forty-two thousand, sixteen".