16650960438 has 48 divisors (see below), whose sum is σ = 38886557184. Its totient is φ = 4656169680.

The previous prime is 16650960433. The next prime is 16650960439. The reversal of 16650960438 is 83406905661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16650960433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3043 + ... + 182513.

It is an arithmetic number, because the mean of its divisors is an integer number (810136608).

Almost surely, 2^16650960438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16650960438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19443278592).

16650960438 is an abundant number, since it is smaller than the sum of its proper divisors (22235596746).

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

16650960438 is a wasteful number, since it uses less digits than its factorization.

16650960438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179577 (or 179530 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 48.

The spelling of 16650960438 in words is "sixteen billion, six hundred fifty million, nine hundred sixty thousand, four hundred thirty-eight".