23105986561 has 8 divisors (see below), whose sum is σ = 26432713664. Its totient is φ = 19785727440.

The previous prime is 23105986523. The next prime is 23105986571. The reversal of 23105986561 is 16568950132.

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

It is a cyclic number.

It is not a de Polignac number, because 23105986561 - 2⁷ = 23105986433 is a prime.

It is a super-2 number, since 2×23105986561² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23105986571) 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, 1609335 + ... + 1623628.

It is an arithmetic number, because the mean of its divisors is an integer number (3304089208).

Almost surely, 2^23105986561 is an apocalyptic number.

It is an amenable number.

23105986561 is a deficient number, since it is larger than the sum of its proper divisors (3326727103).

23105986561 is a wasteful number, since it uses less digits than its factorization.

23105986561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3233991.

The product of its (nonzero) digits is 388800, while the sum is 46.

The spelling of 23105986561 in words is "twenty-three billion, one hundred five million, nine hundred eighty-six thousand, five hundred sixty-one".