23116516 has 12 divisors (see below), whose sum is σ = 40558588. Its totient is φ = 11528352.

The previous prime is 23116507. The next prime is 23116517. The reversal of 23116516 is 61561132.

It can be written as a sum of positive squares in 2 ways, for example, as 9278116 + 13838400 = 3046^2 + 3720^2 .

It is not an unprimeable number, because it can be changed into a prime (23116517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5691 + ... + 8866.

Almost surely, 2^23116516 is an apocalyptic number.

It is an amenable number.

23116516 is a deficient number, since it is larger than the sum of its proper divisors (17442072).

23116516 is a wasteful number, since it uses less digits than its factorization.

23116516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14958 (or 14956 counting only the distinct ones).

The product of its digits is 1080, while the sum is 25.

The square root of 23116516 is about 4807.9638101799. The cubic root of 23116516 is about 284.8661154261.

Adding to 23116516 its reverse (61561132), we get a palindrome (84677648).

It can be divided in two parts, 23116 and 516, that added together give a palindrome (23632).

The spelling of 23116516 in words is "twenty-three million, one hundred sixteen thousand, five hundred sixteen".