214171256406 has 16 divisors (see below), whose sum is σ = 436424447664. Its totient is φ = 70043429664.

The previous prime is 214171256401. The next prime is 214171256407. The reversal of 214171256406 is 604652171412.

214171256406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214171256401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336746941 + ... + 336747576.

It is an arithmetic number, because the mean of its divisors is an integer number (27276527979).

Almost surely, 2^214171256406 is an apocalyptic number.

214171256406 is an abundant number, since it is smaller than the sum of its proper divisors (222253191258).

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

214171256406 is a wasteful number, since it uses less digits than its factorization.

214171256406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673494575.

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 214171256406 in words is "two hundred fourteen billion, one hundred seventy-one million, two hundred fifty-six thousand, four hundred six".