23666060561 has 16 divisors (see below), whose sum is σ = 27852272448. Its totient is φ = 19824782400.

The previous prime is 23666060533. The next prime is 23666060567. The reversal of 23666060561 is 16506066632.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 23666060561 - 2¹⁴ = 23666044177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23666060567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63266 + ... + 226571.

It is an arithmetic number, because the mean of its divisors is an integer number (1740767028).

Almost surely, 2^23666060561 is an apocalyptic number.

It is an amenable number.

23666060561 is a deficient number, since it is larger than the sum of its proper divisors (4186211887).

23666060561 is a wasteful number, since it uses less digits than its factorization.

23666060561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290432.

The product of its (nonzero) digits is 233280, while the sum is 41.

The spelling of 23666060561 in words is "twenty-three billion, six hundred sixty-six million, sixty thousand, five hundred sixty-one".