214431166646 has 16 divisors (see below), whose sum is σ = 355374415584. Its totient is φ = 96521445504.

The previous prime is 214431166637. The next prime is 214431166709. The reversal of 214431166646 is 646661134412.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 214431166597 and 214431166606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137103545 + ... + 137105108.

It is an arithmetic number, because the mean of its divisors is an integer number (22210900974).

Almost surely, 2^214431166646 is an apocalyptic number.

214431166646 is a deficient number, since it is larger than the sum of its proper divisors (140943248938).

214431166646 is a wasteful number, since it uses less digits than its factorization.

214431166646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274208695.

The product of its digits is 497664, while the sum is 44.

The spelling of 214431166646 in words is "two hundred fourteen billion, four hundred thirty-one million, one hundred sixty-six thousand, six hundred forty-six".