16476991789648 has 320 divisors, whose sum is σ = 38833234513920. Its totient is φ = 6697233100800.

The previous prime is 16476991789637. The next prime is 16476991789663. The reversal of 16476991789648 is 84698719967461.

It is a super-2 number, since 2×16476991789648² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 980123163 + ... + 980139973.

It is an arithmetic number, because the mean of its divisors is an integer number (121353857856).

Almost surely, 2^{16476991789648} 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 16476991789648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19416617256960).

16476991789648 is an abundant number, since it is smaller than the sum of its proper divisors (22356242724272).

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

16476991789648 is a wasteful number, since it uses less digits than its factorization.

16476991789648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17178 (or 17172 counting only the distinct ones).

The product of its digits is 7900913664, while the sum is 85.

The spelling of 16476991789648 in words is "sixteen trillion, four hundred seventy-six billion, nine hundred ninety-one million, seven hundred eighty-nine thousand, six hundred forty-eight".