16324306420 has 12 divisors (see below), whose sum is σ = 34281043524. Its totient is φ = 6529722560.

The previous prime is 16324306417. The next prime is 16324306421. The reversal of 16324306420 is 2460342361.

It can be written as a sum of positive squares in 2 ways, for example, as 3817015524 + 12507290896 = 61782^2 + 111836^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16324306421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408107641 + ... + 408107680.

It is an arithmetic number, because the mean of its divisors is an integer number (2856753627).

Almost surely, 2^16324306420 is an apocalyptic number.

16324306420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16324306420 is an abundant number, since it is smaller than the sum of its proper divisors (17956737104).

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

16324306420 is a wasteful number, since it uses less digits than its factorization.

16324306420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816215330 (or 816215328 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 16324306420 its reverse (2460342361), we get a palindrome (18784648781).

The spelling of 16324306420 in words is "sixteen billion, three hundred twenty-four million, three hundred six thousand, four hundred twenty".