16456304420 has 24 divisors (see below), whose sum is σ = 34560732024. Its totient is φ = 6582046976.

The previous prime is 16456304411. The next prime is 16456304489. The reversal of 16456304420 is 2440365461.

It can be written as a sum of positive squares in 4 ways, for example, as 1026689764 + 15429614656 = 32042^2 + 124216^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422822 + ... + 460098.

It is an arithmetic number, because the mean of its divisors is an integer number (1440030501).

Almost surely, 2^16456304420 is an apocalyptic number.

16456304420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16456304420 is an abundant number, since it is smaller than the sum of its proper divisors (18104427604).

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

16456304420 is a wasteful number, since it uses less digits than its factorization.

16456304420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59359 (or 59357 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 16456304420 its reverse (2440365461), we get a palindrome (18896669881).

The spelling of 16456304420 in words is "sixteen billion, four hundred fifty-six million, three hundred four thousand, four hundred twenty".