450165320455540 has 12 divisors (see below), whose sum is σ = 945347172956676. Its totient is φ = 180066128182208.

The previous prime is 450165320455453. The next prime is 450165320455547. The reversal of 450165320455540 is 45554023561054.

It can be written as a sum of positive squares in 2 ways, for example, as 131593798016356 + 318571522439184 = 11471434^2 + 17848572^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450165320455547) 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 3 ways as a sum of consecutive naturals, for example, 11254133011369 + ... + 11254133011408.

It is an arithmetic number, because the mean of its divisors is an integer number (78778931079723).

Almost surely, 2^{450165320455540} is an apocalyptic number.

It is an amenable number.

450165320455540 is an abundant number, since it is smaller than the sum of its proper divisors (495181852501136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

450165320455540 is a wasteful number, since it uses less digits than its factorization.

450165320455540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22508266022786 (or 22508266022784 counting only the distinct ones).

The product of its (nonzero) digits is 7200000, while the sum is 49.

The spelling of 450165320455540 in words is "four hundred fifty trillion, one hundred sixty-five billion, three hundred twenty million, four hundred fifty-five thousand, five hundred forty".