445718153312161 has 4 divisors (see below), whose sum is σ = 465097203456192. Its totient is φ = 426339103168132.

The previous prime is 445718153312077. The next prime is 445718153312279. The reversal of 445718153312161 is 161213351817544.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 445718153312161 - 2²⁷ = 445718019094433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 445718153312099 and 445718153312108.

It is not an unprimeable number, because it can be changed into a prime (445718153313161) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 9689525071981 + ... + 9689525072026.

It is an arithmetic number, because the mean of its divisors is an integer number (116274300864048).

Almost surely, 2^{445718153312161} is an apocalyptic number.

It is an amenable number.

445718153312161 is a deficient number, since it is larger than the sum of its proper divisors (19379050144031).

445718153312161 is a wasteful number, since it uses less digits than its factorization.

445718153312161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19379050144030.

The product of its digits is 2419200, while the sum is 52.

The spelling of 445718153312161 in words is "four hundred forty-five trillion, seven hundred eighteen billion, one hundred fifty-three million, three hundred twelve thousand, one hundred sixty-one".