3665563442 has 18 divisors (see below), whose sum is σ = 5685549597. Its totient is φ = 1772375400.

The previous prime is 3665563441. The next prime is 3665563459. The reversal of 3665563442 is 2443655663.

It can be written as a sum of positive squares in 2 ways, for example, as 3657951361 + 7612081 = 60481^2 + 2759^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=42811.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3665563393 and 3665563402.

It is not an unprimeable number, because it can be changed into a prime (3665563441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2653592 + ... + 2654972.

Almost surely, 2^3665563442 is an apocalyptic number.

3665563442 is a deficient number, since it is larger than the sum of its proper divisors (2019986155).

3665563442 is an frugal number, since it uses more digits than its factorization.

3665563442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2826 (or 1414 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 44.

The square root of 3665563442 is about 60543.8968187546. The cubic root of 3665563442 is about 1541.8670000013.

The spelling of 3665563442 in words is "three billion, six hundred sixty-five million, five hundred sixty-three thousand, four hundred forty-two".