211411040406 has 16 divisors (see below), whose sum is σ = 423018494064. Its totient is φ = 70437611264.

The previous prime is 211411040387. The next prime is 211411040431. The reversal of 211411040406 is 604040114112.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8169891 + ... + 8195726.

It is an arithmetic number, because the mean of its divisors is an integer number (26438655879).

Almost surely, 2^211411040406 is an apocalyptic number.

211411040406 is an abundant number, since it is smaller than the sum of its proper divisors (211607453658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211411040406 is a wasteful number, since it uses less digits than its factorization.

211411040406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16367775.

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 211411040406 its reverse (604040114112), we get a palindrome (815451154518).

The spelling of 211411040406 in words is "two hundred eleven billion, four hundred eleven million, forty thousand, four hundred six".