16056265378729 has 9 divisors (see below), whose sum is σ = 16285883663991. Its totient is φ = 15829840304040.

The previous prime is 16056265378651. The next prime is 16056265378771. The reversal of 16056265378729 is 92787356265061.

The square root of 16056265378729 is 4007027.

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., 14200273305625 + 1855992073104 = 3768325^2 + 1362348^2 .

It is not a de Polignac number, because 16056265378729 - 2³³ = 16047675444137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16056265378129) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 284470699 + ... + 284527135.

Almost surely, 2^{16056265378729} is an apocalyptic number.

16056265378729 is the 4007027-th square number.

16056265378729 is the 2003514-th centered octagonal number.

It is an amenable number.

16056265378729 is a deficient number, since it is larger than the sum of its proper divisors (229618285262).

16056265378729 is an frugal number, since it uses more digits than its factorization.

16056265378729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113016 (or 56508 counting only the distinct ones).

The product of its (nonzero) digits is 228614400, while the sum is 67.

The spelling of 16056265378729 in words is "sixteen trillion, fifty-six billion, two hundred sixty-five million, three hundred seventy-eight thousand, seven hundred twenty-nine".