126666604 has 12 divisors (see below), whose sum is σ = 221960200. Its totient is φ = 63249408.

The previous prime is 126666601. The next prime is 126666613. The reversal of 126666604 is 406666621.

It is not an unprimeable number, because it can be changed into a prime (126666601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17514 + ... + 23665.

Almost surely, 2^126666604 is an apocalyptic number.

It is an amenable number.

126666604 is a deficient number, since it is larger than the sum of its proper divisors (95293596).

126666604 is a wasteful number, since it uses less digits than its factorization.

126666604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41952 (or 41950 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 126666604 is about 11254.6258933827. The cubic root of 126666604 is about 502.2123353736.

The spelling of 126666604 in words is "one hundred twenty-six million, six hundred sixty-six thousand, six hundred four".