14451998720 has 160 divisors (see below), whose sum is σ = 35861265000. Its totient is φ = 5586812928.

The previous prime is 14451998711. The next prime is 14451998753. The reversal of 14451998720 is 2789915441.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11670913024 + 2781085696 = 108032^2 + 52736^2 .

It is a tau number, because it is divible by the number of its divisors (160).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96993206 + ... + 96993354.

Almost surely, 2^14451998720 is an apocalyptic number.

14451998720 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 14451998720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17930632500).

14451998720 is an abundant number, since it is smaller than the sum of its proper divisors (21409266280).

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

14451998720 is an frugal number, since it uses more digits than its factorization.

14451998720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 50.

The spelling of 14451998720 in words is "fourteen billion, four hundred fifty-one million, nine hundred ninety-eight thousand, seven hundred twenty".