16454400312 has 96 divisors (see below), whose sum is σ = 48507843600. Its totient is φ = 4636832256.

The previous prime is 16454400301. The next prime is 16454400329. The reversal of 16454400312 is 21300445461.

It is a self number, because there is not a number n which added to its sum of digits gives 16454400312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9987 + ... + 181682.

Almost surely, 2^16454400312 is an apocalyptic number.

16454400312 is a gapful number since it is divisible by the number (12) 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 16454400312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24253921800).

16454400312 is an abundant number, since it is smaller than the sum of its proper divisors (32053443288).

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

16454400312 is a wasteful number, since it uses less digits than its factorization.

16454400312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191765 (or 191754 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 16454400312 its reverse (21300445461), we get a palindrome (37754845773).

The spelling of 16454400312 in words is "sixteen billion, four hundred fifty-four million, four hundred thousand, three hundred twelve".