16637475316 has 108 divisors (see below), whose sum is σ = 38238419296. Its totient is φ = 6199633440.

The previous prime is 16637475299. The next prime is 16637475319. The reversal of 16637475316 is 61357473661.

It is a self number, because there is not a number n which added to its sum of digits gives 16637475316.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16637475319) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1787611 + ... + 1796893.

Almost surely, 2^16637475316 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 16637475316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19119209648).

16637475316 is an abundant number, since it is smaller than the sum of its proper divisors (21600943980).

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

16637475316 is a wasteful number, since it uses less digits than its factorization.

16637475316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9362 (or 9326 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 49.

The spelling of 16637475316 in words is "sixteen billion, six hundred thirty-seven million, four hundred seventy-five thousand, three hundred sixteen".