16745811456 has 160 divisors (see below), whose sum is σ = 49075716096. Its totient is φ = 5073868800.

The previous prime is 16745811451. The next prime is 16745811479. The reversal of 16745811456 is 65411854761.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16745811451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2040321 + ... + 2048511.

Almost surely, 2^16745811456 is an apocalyptic number.

16745811456 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 16745811456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24537858048).

16745811456 is an abundant number, since it is smaller than the sum of its proper divisors (32329904640).

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

16745811456 is an frugal number, since it uses more digits than its factorization.

16745811456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8245 (or 8207 counting only the distinct ones).

The product of its digits is 806400, while the sum is 48.

The spelling of 16745811456 in words is "sixteen billion, seven hundred forty-five million, eight hundred eleven thousand, four hundred fifty-six".