23016660 has 24 divisors (see below), whose sum is σ = 64446816. Its totient is φ = 6137760.

The previous prime is 23016649. The next prime is 23016661. The reversal of 23016660 is 6661032.

It is a self number, because there is not a number n which added to its sum of digits gives 23016660.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23016661) 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, 191746 + ... + 191865.

It is an arithmetic number, because the mean of its divisors is an integer number (2685284).

Almost surely, 2^23016660 is an apocalyptic number.

23016660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23016660 is an abundant number, since it is smaller than the sum of its proper divisors (41430156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23016660 is a wasteful number, since it uses less digits than its factorization.

23016660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383623 (or 383621 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 23016660 is about 4797.5681339612. The cubic root of 23016660 is about 284.4553463749.

Adding to 23016660 its reverse (6661032), we get a palindrome (29677692).

The spelling of 23016660 in words is "twenty-three million, sixteen thousand, six hundred sixty".