431661166134 has 96 divisors (see below), whose sum is σ = 1010782499328. Its totient is φ = 122374137600.

The previous prime is 431661166127. The next prime is 431661166159.

431661166134 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1956399 + ... + 2165829.

It is an arithmetic number, because the mean of its divisors is an integer number (10528984368).

Almost surely, 2^431661166134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 431661166134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (505391249664).

431661166134 is an abundant number, since it is smaller than the sum of its proper divisors (579121333194).

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

431661166134 is a wasteful number, since it uses less digits than its factorization.

431661166134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209642 (or 209631 counting only the distinct ones).

The product of its digits is 186624, while the sum is 42.

It can be divided in two parts, 431661 and 166134, that added together give a palindrome (597795).

The spelling of 431661166134 in words is "four hundred thirty-one billion, six hundred sixty-one million, one hundred sixty-six thousand, one hundred thirty-four".