23001666 has 16 divisors (see below), whose sum is σ = 48424800. Its totient is φ = 7263648.

The previous prime is 23001653. The next prime is 23001677. The reversal of 23001666 is 66610032.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100771 + ... + 100998.

It is an arithmetic number, because the mean of its divisors is an integer number (3026550).

Almost surely, 2^23001666 is an apocalyptic number.

23001666 is an abundant number, since it is smaller than the sum of its proper divisors (25423134).

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

23001666 is a wasteful number, since it uses less digits than its factorization.

23001666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201793.

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

The square root of 23001666 is about 4796.0052126744. The cubic root of 23001666 is about 284.3935643156.

Adding to 23001666 its reverse (66610032), we get a palindrome (89611698).

The spelling of 23001666 in words is "twenty-three million, one thousand, six hundred sixty-six".