16454430720 has 1040 divisors, whose sum is σ = 73262925120. Its totient is φ = 3439853568.

The previous prime is 16454430683. The next prime is 16454430731. The reversal of 16454430720 is 2703445461.

16454430720 is a `hidden beast` number, since 1 + 64 + 544 + 30 + 7 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (1040).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 150958026 + ... + 150958134.

Almost surely, 2^16454430720 is an apocalyptic number.

16454430720 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 16454430720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36631462560).

16454430720 is an abundant number, since it is smaller than the sum of its proper divisors (56808494400).

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

16454430720 is a wasteful number, since it uses less digits than its factorization.

16454430720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The spelling of 16454430720 in words is "sixteen billion, four hundred fifty-four million, four hundred thirty thousand, seven hundred twenty".