16726136336 has 80 divisors (see below), whose sum is σ = 39918278400. Its totient is φ = 6611480064.

The previous prime is 16726136293. The next prime is 16726136353. The reversal of 16726136336 is 63363162761.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2076605 + ... + 2084643.

It is an arithmetic number, because the mean of its divisors is an integer number (498978480).

Almost surely, 2^16726136336 is an apocalyptic number.

16726136336 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 16726136336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19959139200).

16726136336 is an abundant number, since it is smaller than the sum of its proper divisors (23192142064).

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

16726136336 is a wasteful number, since it uses less digits than its factorization.

16726136336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9496 (or 9490 counting only the distinct ones).

The product of its digits is 489888, while the sum is 44.

The spelling of 16726136336 in words is "sixteen billion, seven hundred twenty-six million, one hundred thirty-six thousand, three hundred thirty-six".