16729111456 has 48 divisors (see below), whose sum is σ = 34395798528. Its totient is φ = 7994272000.

The previous prime is 16729111423. The next prime is 16729111459. The reversal of 16729111456 is 65411192761.

It is not an unprimeable number, because it can be changed into a prime (16729111459) 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, 948801 + ... + 966271.

It is an arithmetic number, because the mean of its divisors is an integer number (716579136).

Almost surely, 2^16729111456 is an apocalyptic number.

16729111456 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 16729111456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17197899264).

16729111456 is an abundant number, since it is smaller than the sum of its proper divisors (17666687072).

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

16729111456 is a wasteful number, since it uses less digits than its factorization.

16729111456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18805 (or 18797 counting only the distinct ones).

The product of its digits is 90720, while the sum is 43.

The spelling of 16729111456 in words is "sixteen billion, seven hundred twenty-nine million, one hundred eleven thousand, four hundred fifty-six".