12666470 has 16 divisors (see below), whose sum is σ = 23230800. Its totient is φ = 4970784.

The previous prime is 12666461. The next prime is 12666503. The reversal of 12666470 is 7466621.

It is a congruent number.

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, 11420 + ... + 12479.

It is an arithmetic number, because the mean of its divisors is an integer number (1451925).

Almost surely, 2^12666470 is an apocalyptic number.

12666470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12666470 is a deficient number, since it is larger than the sum of its proper divisors (10564330).

12666470 is a wasteful number, since it uses less digits than its factorization.

12666470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23959.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 12666470 is about 3558.9984546217. The cubic root of 12666470 is about 233.1051488055.

The spelling of 12666470 in words is "twelve million, six hundred sixty-six thousand, four hundred seventy".