16147726720 has 64 divisors (see below), whose sum is σ = 38773566000. Its totient is φ = 6430578688.

The previous prime is 16147726703. The next prime is 16147726723. The reversal of 16147726720 is 2762774161.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16147726723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89706 + ... + 200854.

Almost surely, 2^16147726720 is an apocalyptic number.

16147726720 is a gapful number since it is divisible by the number (10) 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 16147726720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19386783000).

16147726720 is an abundant number, since it is smaller than the sum of its proper divisors (22625839280).

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

16147726720 is a wasteful number, since it uses less digits than its factorization.

16147726720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111395 (or 111383 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 43.

The spelling of 16147726720 in words is "sixteen billion, one hundred forty-seven million, seven hundred twenty-six thousand, seven hundred twenty".