2306661563 has 4 divisors (see below), whose sum is σ = 2308103928. Its totient is φ = 2305219200.

The previous prime is 2306661557. The next prime is 2306661583. The reversal of 2306661563 is 3651666032.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2306661563 - 2¹⁰ = 2306660539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2306661583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 718781 + ... + 721982.

It is an arithmetic number, because the mean of its divisors is an integer number (577025982).

Almost surely, 2^2306661563 is an apocalyptic number.

2306661563 is a deficient number, since it is larger than the sum of its proper divisors (1442365).

2306661563 is a wasteful number, since it uses less digits than its factorization.

2306661563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1442364.

The product of its (nonzero) digits is 116640, while the sum is 38.

The square root of 2306661563 is about 48027.7166123896. The cubic root of 2306661563 is about 1321.2792852934.

The spelling of 2306661563 in words is "two billion, three hundred six million, six hundred sixty-one thousand, five hundred sixty-three".