16271666720 has 96 divisors (see below), whose sum is σ = 39691524096. Its totient is φ = 6299596800.

The previous prime is 16271666717. The next prime is 16271666777. The reversal of 16271666720 is 2766617261.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 823355 + ... + 842885.

It is an arithmetic number, because the mean of its divisors is an integer number (413453376).

Almost surely, 2^16271666720 is an apocalyptic number.

16271666720 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 16271666720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19845762048).

16271666720 is an abundant number, since it is smaller than the sum of its proper divisors (23419857376).

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

16271666720 is a wasteful number, since it uses less digits than its factorization.

16271666720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19714 (or 19706 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 44.

The spelling of 16271666720 in words is "sixteen billion, two hundred seventy-one million, six hundred sixty-six thousand, seven hundred twenty".