16725315456 has 160 divisors (see below), whose sum is σ = 49863407880. Its totient is φ = 5565127680.

The previous prime is 16725315403. The next prime is 16725315499. The reversal of 16725315456 is 65451352761.

16725315456 is a `hidden beast` number, since 1 + 6 + 72 + 5 + 31 + 545 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7847511 + ... + 7849641.

Almost surely, 2^16725315456 is an apocalyptic number.

16725315456 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 16725315456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24931703940).

16725315456 is an abundant number, since it is smaller than the sum of its proper divisors (33138092424).

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

16725315456 is an equidigital number, since it uses as much as digits as its factorization.

16725315456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2914 (or 2893 counting only the distinct ones).

The product of its digits is 756000, while the sum is 45.

The spelling of 16725315456 in words is "sixteen billion, seven hundred twenty-five million, three hundred fifteen thousand, four hundred fifty-six".