1045394064565 has 8 divisors (see below), whose sum is σ = 1259856882648. Its totient is φ = 832725914880.

The previous prime is 1045394064497. The next prime is 1045394064571. The reversal of 1045394064565 is 5654604935401.

It can be written as a sum of positive squares in 4 ways, for example, as 141055829476 + 904338235089 = 375574^2 + 950967^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1045394064565 - 2⁷ = 1045394064437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 448665816 + ... + 448668145.

It is an arithmetic number, because the mean of its divisors is an integer number (157482110331).

Almost surely, 2^{1045394064565} is an apocalyptic number.

It is an amenable number.

1045394064565 is a deficient number, since it is larger than the sum of its proper divisors (214462818083).

1045394064565 is an equidigital number, since it uses as much as digits as its factorization.

1045394064565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897334199.

The product of its (nonzero) digits is 7776000, while the sum is 52.

Adding to 1045394064565 its reverse (5654604935401), we get a palindrome (6699998999966).

The spelling of 1045394064565 in words is "one trillion, forty-five billion, three hundred ninety-four million, sixty-four thousand, five hundred sixty-five".