406666101 has 16 divisors (see below), whose sum is σ = 590443200. Its totient is φ = 247984128.

The previous prime is 406666087. The next prime is 406666109. The reversal of 406666101 is 101666604.

It is not a de Polignac number, because 406666101 - 2⁵ = 406666069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406666109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121356 + ... + 124661.

It is an arithmetic number, because the mean of its divisors is an integer number (36902700).

Almost surely, 2^406666101 is an apocalyptic number.

It is an amenable number.

406666101 is a deficient number, since it is larger than the sum of its proper divisors (183777099).

406666101 is a wasteful number, since it uses less digits than its factorization.

406666101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246068.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 406666101 is about 20165.9639243950. The cubic root of 406666101 is about 740.8767918614.

The spelling of 406666101 in words is "four hundred six million, six hundred sixty-six thousand, one hundred one".