43216644661234 has 32 divisors (see below), whose sum is σ = 71588913963840. Its totient is φ = 19402173307200.

The previous prime is 43216644661147. The next prime is 43216644661297.

It is a happy number.

43216644661234 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3880132 + ... + 10074160.

It is an arithmetic number, because the mean of its divisors is an integer number (2237153561370).

Almost surely, 2^{43216644661234} is an apocalyptic number.

43216644661234 is a deficient number, since it is larger than the sum of its proper divisors (28372269302606).

43216644661234 is a wasteful number, since it uses less digits than its factorization.

43216644661234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6197946.

The product of its digits is 11943936, while the sum is 52.

It can be divided in two parts, 4321664 and 4661234, that added together give a palindrome (8982898).

The spelling of 43216644661234 in words is "forty-three trillion, two hundred sixteen billion, six hundred forty-four million, six hundred sixty-one thousand, two hundred thirty-four".