23506666 has 16 divisors (see below), whose sum is σ = 36129888. Its totient is φ = 11466000.

The previous prime is 23506663. The next prime is 23506697. The reversal of 23506666 is 66660532.

23506666 is a modest number, since divided by 6666 gives 2350 as remainder.

It is not an unprimeable number, because it can be changed into a prime (23506661) 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, 21841 + ... + 22891.

It is an arithmetic number, because the mean of its divisors is an integer number (2258118).

Almost surely, 2^23506666 is an apocalyptic number.

23506666 is a deficient number, since it is larger than the sum of its proper divisors (12623222).

23506666 is a wasteful number, since it uses less digits than its factorization.

23506666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1317.

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 23506666 is about 4848.3673540688. The cubic root of 23506666 is about 286.4597963662.

The spelling of 23506666 in words is "twenty-three million, five hundred six thousand, six hundred sixty-six".