16478343424 has 81 divisors (see below), whose sum is σ = 33659968069. Its totient is φ = 8051240960.

The previous prime is 16478343407. The next prime is 16478343433. The reversal of 16478343424 is 42434387461.

It is a happy number.

The square root of 16478343424 is 128368.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 290361600 + 16187981824 = 17040^2 + 127232^2 .

It is a Duffinian number.

Its product of digits (1548288) is a multiple of the sum of its prime factors (384).

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 145825992 + ... + 145826104.

Almost surely, 2^16478343424 is an apocalyptic number.

16478343424 is the 128368-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16478343424

16478343424 is an abundant number, since it is smaller than the sum of its proper divisors (17181624645).

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

16478343424 is an frugal number, since it uses more digits than its factorization.

16478343424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384 (or 186 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 46.

The spelling of 16478343424 in words is "sixteen billion, four hundred seventy-eight million, three hundred forty-three thousand, four hundred twenty-four".