406666260406 has 16 divisors (see below), whose sum is σ = 701582560416. Its totient is φ = 173175440256.

The previous prime is 406666260401. The next prime is 406666260449. The reversal of 406666260406 is 604062666604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406666260401) 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, 92506051 + ... + 92510446.

It is an arithmetic number, because the mean of its divisors is an integer number (43848910026).

Almost surely, 2^406666260406 is an apocalyptic number.

406666260406 is a deficient number, since it is larger than the sum of its proper divisors (294916300010).

406666260406 is a wasteful number, since it uses less digits than its factorization.

406666260406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185016663.

The product of its (nonzero) digits is 1492992, while the sum is 46.

The spelling of 406666260406 in words is "four hundred six billion, six hundred sixty-six million, two hundred sixty thousand, four hundred six".