445675020164465 has 48 divisors (see below), whose sum is σ = 676128410994960. Its totient is φ = 279509543631360.

The previous prime is 445675020164449. The next prime is 445675020164467. The reversal of 445675020164465 is 564461020576544.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 17286402766864 + 428388617397601 = 4157692^2 + 20697551^2 .

It is not a de Polignac number, because 445675020164465 - 2⁴ = 445675020164449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (445675020164467) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 641530646 + ... + 642224975.

It is an arithmetic number, because the mean of its divisors is an integer number (14086008562395).

Almost surely, 2^{445675020164465} is an apocalyptic number.

It is an amenable number.

445675020164465 is a deficient number, since it is larger than the sum of its proper divisors (230453390830495).

445675020164465 is a wasteful number, since it uses less digits than its factorization.

445675020164465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283755762 (or 1283755755 counting only the distinct ones).

The product of its (nonzero) digits is 96768000, while the sum is 59.

The spelling of 445675020164465 in words is "four hundred forty-five trillion, six hundred seventy-five billion, twenty million, one hundred sixty-four thousand, four hundred sixty-five".