3532216645 has 4 divisors (see below), whose sum is σ = 4238659980. Its totient is φ = 2825773312.

The previous prime is 3532216627. The next prime is 3532216691. The reversal of 3532216645 is 5466122353.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5466122353 = 17 ⋅321536609.

It can be written as a sum of positive squares in 2 ways, for example, as 1523653156 + 2008563489 = 39034^2 + 44817^2 .

It is a cyclic number.

It is not a de Polignac number, because 3532216645 - 2⁷ = 3532216517 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353221660 + ... + 353221669.

It is an arithmetic number, because the mean of its divisors is an integer number (1059664995).

Almost surely, 2^3532216645 is an apocalyptic number.

It is an amenable number.

3532216645 is a deficient number, since it is larger than the sum of its proper divisors (706443335).

3532216645 is an equidigital number, since it uses as much as digits as its factorization.

3532216645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706443334.

The product of its digits is 129600, while the sum is 37.

The square root of 3532216645 is about 59432.4544756482. The cubic root of 3532216645 is about 1522.9387750521.

Adding to 3532216645 its reverse (5466122353), we get a palindrome (8998338998).

The spelling of 3532216645 in words is "three billion, five hundred thirty-two million, two hundred sixteen thousand, six hundred forty-five".