16451223044434 has 32 divisors (see below), whose sum is σ = 25297410018816. Its totient is φ = 8020109656320.

The previous prime is 16451223044419. The next prime is 16451223044437. The reversal of 16451223044434 is 43444032215461.

16451223044434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (16451223044437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51086694 + ... + 51407710.

It is an arithmetic number, because the mean of its divisors is an integer number (790544063088).

Almost surely, 2^{16451223044434} is an apocalyptic number.

16451223044434 is a deficient number, since it is larger than the sum of its proper divisors (8846186974382).

16451223044434 is a wasteful number, since it uses less digits than its factorization.

16451223044434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323130.

The product of its (nonzero) digits is 1105920, while the sum is 43.

Adding to 16451223044434 its reverse (43444032215461), we get a palindrome (59895255259895).

The spelling of 16451223044434 in words is "sixteen trillion, four hundred fifty-one billion, two hundred twenty-three million, forty-four thousand, four hundred thirty-four".