3536331561 has 48 divisors (see below), whose sum is σ = 6103457920. Its totient is φ = 1982335680.

The previous prime is 3536331553. The next prime is 3536331583. The reversal of 3536331561 is 1651336353.

3536331561 is a `hidden beast` number, since 3 + 5 + 3 + 63 + 31 + 561 = 666.

It is not a de Polignac number, because 3536331561 - 2³ = 3536331553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3536331361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 527571 + ... + 534231.

Almost surely, 2^3536331561 is an apocalyptic number.

It is an amenable number.

3536331561 is a deficient number, since it is larger than the sum of its proper divisors (2567126359).

3536331561 is an equidigital number, since it uses as much as digits as its factorization.

3536331561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6783 (or 6724 counting only the distinct ones).

The product of its digits is 72900, while the sum is 36.

The square root of 3536331561 is about 59467.0628247268. The cubic root of 3536331561 is about 1523.5299367135.

The spelling of 3536331561 in words is "three billion, five hundred thirty-six million, three hundred thirty-one thousand, five hundred sixty-one".