4451566116451 has 4 divisors (see below), whose sum is σ = 4452270150312. Its totient is φ = 4450862082592.

The previous prime is 4451566116379. The next prime is 4451566116469. The reversal of 4451566116451 is 1546116651544.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4451566116451 - 2¹⁷ = 4451565985379 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4451566116395 and 4451566116404.

It is not an unprimeable number, because it can be changed into a prime (4451566116251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352007446 + ... + 352020091.

It is an arithmetic number, because the mean of its divisors is an integer number (1113067537578).

Almost surely, 2^{4451566116451} is an apocalyptic number.

4451566116451 is a deficient number, since it is larger than the sum of its proper divisors (704033861).

4451566116451 is an equidigital number, since it uses as much as digits as its factorization.

4451566116451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704033860.

The product of its digits is 1728000, while the sum is 49.

The spelling of 4451566116451 in words is "four trillion, four hundred fifty-one billion, five hundred sixty-six million, one hundred sixteen thousand, four hundred fifty-one".