2306656561 has 8 divisors (see below), whose sum is σ = 2529000000. Its totient is φ = 2086421040.

The previous prime is 2306656537. The next prime is 2306656567. The reversal of 2306656561 is 1656566032.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2306656561 - 2⁹ = 2306656049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2306656567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 524686 + ... + 529063.

It is an arithmetic number, because the mean of its divisors is an integer number (316125000).

Almost surely, 2^2306656561 is an apocalyptic number.

It is an amenable number.

2306656561 is a deficient number, since it is larger than the sum of its proper divisors (222343439).

2306656561 is a wasteful number, since it uses less digits than its factorization.

2306656561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053959.

The product of its (nonzero) digits is 194400, while the sum is 40.

The square root of 2306656561 is about 48027.6645382638. The cubic root of 2306656561 is about 1321.2783302272.

The spelling of 2306656561 in words is "two billion, three hundred six million, six hundred fifty-six thousand, five hundred sixty-one".