23661116 has 24 divisors (see below), whose sum is σ = 42663936. Its totient is φ = 11476080.

The previous prime is 23661103. The next prime is 23661119. The reversal of 23661116 is 61116632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23661119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23381 + ... + 24371.

It is an arithmetic number, because the mean of its divisors is an integer number (1777664).

Almost surely, 2^23661116 is an apocalyptic number.

It is an amenable number.

23661116 is a deficient number, since it is larger than the sum of its proper divisors (19002820).

23661116 is a wasteful number, since it uses less digits than its factorization.

23661116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169 (or 1167 counting only the distinct ones).

The product of its digits is 1296, while the sum is 26.

The square root of 23661116 is about 4864.2693182019. The cubic root of 23661116 is about 287.0858197383.

Adding to 23661116 its reverse (61116632), we get a palindrome (84777748).

The spelling of 23661116 in words is "twenty-three million, six hundred sixty-one thousand, one hundred sixteen".