16227272776 has 64 divisors (see below), whose sum is σ = 35777407680. Its totient is φ = 6802548480.

The previous prime is 16227272773. The next prime is 16227272783. The reversal of 16227272776 is 67727272261.

It is not an unprimeable number, because it can be changed into a prime (16227272773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1409395 + ... + 1420861.

It is an arithmetic number, because the mean of its divisors is an integer number (559021995).

Almost surely, 2^16227272776 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 16227272776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17888703840).

16227272776 is an abundant number, since it is smaller than the sum of its proper divisors (19550134904).

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

16227272776 is a wasteful number, since it uses less digits than its factorization.

16227272776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12734 (or 12730 counting only the distinct ones).

The product of its digits is 1382976, while the sum is 49.

The spelling of 16227272776 in words is "sixteen billion, two hundred twenty-seven million, two hundred seventy-two thousand, seven hundred seventy-six".