169766248729 has 27 divisors (see below), whose sum is σ = 217108870293. Its totient is φ = 132260667000.

The previous prime is 169766248711. The next prime is 169766248781. The reversal of 169766248729 is 927842667961.

The square root of 169766248729 is 412027.

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

169766248729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 169766248729 - 2²¹ = 169764151577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (169766248429) by changing a digit.

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 26 ways as a sum of consecutive naturals, for example, 31723404 + ... + 31728754.

Almost surely, 2^169766248729 is an apocalyptic number.

169766248729 is the 412027-th square number.

169766248729 is the 206014-th centered octagonal number.

It is an amenable number.

169766248729 is a deficient number, since it is larger than the sum of its proper divisors (47342621564).

169766248729 is an frugal number, since it uses more digits than its factorization.

169766248729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10738 (or 5369 counting only the distinct ones).

The product of its digits is 109734912, while the sum is 67.

The spelling of 169766248729 in words is "one hundred sixty-nine billion, seven hundred sixty-six million, two hundred forty-eight thousand, seven hundred twenty-nine".