23505645115 has 4 divisors (see below), whose sum is σ = 28206774144. Its totient is φ = 18804516088.

The previous prime is 23505645109. The next prime is 23505645143. The reversal of 23505645115 is 51154650532.

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 23505645115 - 2¹¹ = 23505643067 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2350564507 + ... + 2350564516.

It is an arithmetic number, because the mean of its divisors is an integer number (7051693536).

Almost surely, 2^23505645115 is an apocalyptic number.

23505645115 is a deficient number, since it is larger than the sum of its proper divisors (4701129029).

23505645115 is an equidigital number, since it uses as much as digits as its factorization.

23505645115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4701129028.

The product of its (nonzero) digits is 90000, while the sum is 37.

It can be divided in two parts, 2350 and 5645115, that added together give a palindrome (5647465).

The spelling of 23505645115 in words is "twenty-three billion, five hundred five million, six hundred forty-five thousand, one hundred fifteen".