16428718080 has 480 divisors, whose sum is σ = 61005344400. Its totient is φ = 4223729664.

The previous prime is 16428717997. The next prime is 16428718099. The reversal of 16428718080 is 8081782461.

16428718080 is a `hidden beast` number, since 1 + 6 + 428 + 71 + 80 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 24053419 + ... + 24054101.

Almost surely, 2^16428718080 is an apocalyptic number.

16428718080 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 16428718080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30502672200).

16428718080 is an abundant number, since it is smaller than the sum of its proper divisors (44576626320).

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

16428718080 is an equidigital number, since it uses as much as digits as its factorization.

16428718080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751 (or 722 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 45.

The spelling of 16428718080 in words is "sixteen billion, four hundred twenty-eight million, seven hundred eighteen thousand, eighty".