169520373064225 has 12 divisors (see below), whose sum is σ = 214677714996864. Its totient is φ = 132730845291920.

The previous prime is 169520373064181. The next prime is 169520373064249. The reversal of 169520373064225 is 522460373025961.

It is not a de Polignac number, because 169520373064225 - 2¹³ = 169520373056033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72136327789 + ... + 72136330138.

It is an arithmetic number, because the mean of its divisors is an integer number (17889809583072).

Almost surely, 2^{169520373064225} is an apocalyptic number.

It is an amenable number.

169520373064225 is a deficient number, since it is larger than the sum of its proper divisors (45157341932639).

169520373064225 is a wasteful number, since it uses less digits than its factorization.

169520373064225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144272657984 (or 144272657979 counting only the distinct ones).

The product of its (nonzero) digits is 16329600, while the sum is 55.

The spelling of 169520373064225 in words is "one hundred sixty-nine trillion, five hundred twenty billion, three hundred seventy-three million, sixty-four thousand, two hundred twenty-five".