23660306505 has 48 divisors (see below), whose sum is σ = 44777865600. Its totient is φ = 11461824000.

The previous prime is 23660306503. The next prime is 23660306533. The reversal of 23660306505 is 50560306632.

It is not a de Polignac number, because 23660306505 - 2¹ = 23660306503 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23660306505.

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 in 47 ways as a sum of consecutive naturals, for example, 574596 + ... + 614394.

It is an arithmetic number, because the mean of its divisors is an integer number (932872200).

Almost surely, 2^23660306505 is an apocalyptic number.

It is an amenable number.

23660306505 is a deficient number, since it is larger than the sum of its proper divisors (21117559095).

23660306505 is a wasteful number, since it uses less digits than its factorization.

23660306505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41022 (or 41019 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 36.

The spelling of 23660306505 in words is "twenty-three billion, six hundred sixty million, three hundred six thousand, five hundred five".