16256618676722 has 54 divisors (see below), whose sum is σ = 26832384880743. Its totient is φ = 7385097152384.

The previous prime is 16256618676703. The next prime is 16256618676731. The reversal of 16256618676722 is 22767681665261.

It can be written as a sum of positive squares in 5 ways, for example, as 12980232690481 + 3276385986241 = 3602809^2 + 1810079^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=2851019.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2811101843 + ... + 2811107625.

Almost surely, 2^{16256618676722} is an apocalyptic number.

16256618676722 is a deficient number, since it is larger than the sum of its proper divisors (10575766204021).

16256618676722 is an frugal number, since it uses more digits than its factorization.

16256618676722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11660 (or 5831 counting only the distinct ones).

The product of its digits is 121927680, while the sum is 65.

The spelling of 16256618676722 in words is "sixteen trillion, two hundred fifty-six billion, six hundred eighteen million, six hundred seventy-six thousand, seven hundred twenty-two".