5736659661 has 24 divisors (see below), whose sum is σ = 8449459200. Its totient is φ = 3749536800.

The previous prime is 5736659651. The next prime is 5736659807. The reversal of 5736659661 is 1669566375.

5736659661 is a `hidden beast` number, since 573 + 6 + 6 + 5 + 9 + 6 + 61 = 666.

It is not a de Polignac number, because 5736659661 - 2⁵ = 5736659629 is a prime.

It is a super-2 number, since 2×5736659661² = 65818528132289269842, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5736659598 and 5736659607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5736659651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 153940 + ... + 187538.

It is an arithmetic number, because the mean of its divisors is an integer number (352060800).

Almost surely, 2^5736659661 is an apocalyptic number.

It is an amenable number.

5736659661 is a deficient number, since it is larger than the sum of its proper divisors (2712799539).

5736659661 is a wasteful number, since it uses less digits than its factorization.

5736659661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33977 (or 33974 counting only the distinct ones).

The product of its digits is 6123600, while the sum is 54.

The square root of 5736659661 is about 75740.7397706149. The cubic root of 5736659661 is about 1790.1373822753.

The spelling of 5736659661 in words is "five billion, seven hundred thirty-six million, six hundred fifty-nine thousand, six hundred sixty-one".