16268281472 has 16 divisors (see below), whose sum is σ = 32409467250. Its totient is φ = 8134140672.

The previous prime is 16268281459. The next prime is 16268281487. The reversal of 16268281472 is 27418286261.

It can be written as a sum of positive squares in only one way, i.e., 14714660416 + 1553621056 = 121304^2 + 39416^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63547847 + ... + 63548102.

Almost surely, 2^16268281472 is an apocalyptic number.

It is an amenable number.

16268281472 is a deficient number, since it is larger than the sum of its proper divisors (16141185778).

16268281472 is an equidigital number, since it uses as much as digits as its factorization.

16268281472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127095963 (or 127095951 counting only the distinct ones).

The product of its digits is 516096, while the sum is 47.

The spelling of 16268281472 in words is "sixteen billion, two hundred sixty-eight million, two hundred eighty-one thousand, four hundred seventy-two".