23660306506 has 4 divisors (see below), whose sum is σ = 35490459762. Its totient is φ = 11830153252.

The previous prime is 23660306503. The next prime is 23660306533. The reversal of 23660306506 is 60560306632.

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

It can be written as a sum of positive squares in only one way, i.e., 19355765625 + 4304540881 = 139125^2 + 65609^2 .

It is not an unprimeable number, because it can be changed into a prime (23660306503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5915076625 + ... + 5915076628.

Almost surely, 2^23660306506 is an apocalyptic number.

23660306506 is a deficient number, since it is larger than the sum of its proper divisors (11830153256).

23660306506 is a wasteful number, since it uses less digits than its factorization.

23660306506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11830153255.

The product of its (nonzero) digits is 116640, while the sum is 37.

The spelling of 23660306506 in words is "twenty-three billion, six hundred sixty million, three hundred six thousand, five hundred six".