16451444412406 has 16 divisors (see below), whose sum is σ = 25279390489248. Its totient is φ = 8024986340800.

The previous prime is 16451444412397. The next prime is 16451444412419. The reversal of 16451444412406 is 60421444415461.

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, 4922316 + ... + 7558576.

It is an arithmetic number, because the mean of its divisors is an integer number (1579961905578).

Almost surely, 2^{16451444412406} is an apocalyptic number.

16451444412406 is a deficient number, since it is larger than the sum of its proper divisors (8827946076842).

16451444412406 is a wasteful number, since it uses less digits than its factorization.

16451444412406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2712407.

The product of its (nonzero) digits is 1474560, while the sum is 46.

Adding to 16451444412406 its reverse (60421444415461), we get a palindrome (76872888827867).

The spelling of 16451444412406 in words is "sixteen trillion, four hundred fifty-one billion, four hundred forty-four million, four hundred twelve thousand, four hundred six".