3562563661 has 2 divisors, whose sum is σ = 3562563662. Its totient is φ = 3562563660.

The previous prime is 3562563659. The next prime is 3562563671. The reversal of 3562563661 is 1663652653.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3421548036 + 141015625 = 58494^2 + 11875^2 .

It is a cyclic number.

It is not a de Polignac number, because 3562563661 - 2¹ = 3562563659 is a prime.

Together with 3562563659, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3562563601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1781281830 + 1781281831.

It is an arithmetic number, because the mean of its divisors is an integer number (1781281831).

Almost surely, 2^3562563661 is an apocalyptic number.

It is an amenable number.

3562563661 is a deficient number, since it is larger than the sum of its proper divisors (1).

3562563661 is an equidigital number, since it uses as much as digits as its factorization.

3562563661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 583200, while the sum is 43.

The square root of 3562563661 is about 59687.2152223573. The cubic root of 3562563661 is about 1527.2877833832.

The spelling of 3562563661 in words is "three billion, five hundred sixty-two million, five hundred sixty-three thousand, six hundred sixty-one".