9445457665 has 32 divisors (see below), whose sum is σ = 13168189440. Its totient is φ = 6370123200.

The previous prime is 9445457647. The next prime is 9445457729. The reversal of 9445457665 is 5667545449.

9445457665 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9445457665 - 2²⁵ = 9411903233 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1066626 + ... + 1075444.

It is an arithmetic number, because the mean of its divisors is an integer number (411505920).

Almost surely, 2^9445457665 is an apocalyptic number.

It is an amenable number.

9445457665 is a deficient number, since it is larger than the sum of its proper divisors (3722731775).

9445457665 is a wasteful number, since it uses less digits than its factorization.

9445457665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9333.

The product of its digits is 18144000, while the sum is 55.

The square root of 9445457665 is about 97187.7444176991. The cubic root of 9445457665 is about 2113.8508225613.

The spelling of 9445457665 in words is "nine billion, four hundred forty-five million, four hundred fifty-seven thousand, six hundred sixty-five".