445665515575507 has 4 divisors (see below), whose sum is σ = 445665692934736. Its totient is φ = 445665338216280.

The previous prime is 445665515575499. The next prime is 445665515575531. The reversal of 445665515575507 is 705575515566544.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 445665515575507 - 2³ = 445665515575499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445665515875507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84855468 + ... + 89954329.

It is an arithmetic number, because the mean of its divisors is an integer number (111416423233684).

Almost surely, 2^{445665515575507} is an apocalyptic number.

445665515575507 is a deficient number, since it is larger than the sum of its proper divisors (177359229).

445665515575507 is a wasteful number, since it uses less digits than its factorization.

445665515575507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177359228.

The product of its (nonzero) digits is 2205000000, while the sum is 70.

The spelling of 445665515575507 in words is "four hundred forty-five trillion, six hundred sixty-five billion, five hundred fifteen million, five hundred seventy-five thousand, five hundred seven".