451164143064644 has 12 divisors (see below), whose sum is σ = 789667258186044. Its totient is φ = 225544926440064.

The previous prime is 451164143064619. The next prime is 451164143064647. The reversal of 451164143064644 is 446460341461154.

It can be written as a sum of positive squares in 2 ways, for example, as 213051097912900 + 238113045151744 = 14596270^2 + 15430912^2 .

It is not an unprimeable number, because it can be changed into a prime (451164143064647) 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, 9286245737 + ... + 9286294320.

It is an arithmetic number, because the mean of its divisors is an integer number (65805604848837).

Almost surely, 2^{451164143064644} is an apocalyptic number.

It is an amenable number.

451164143064644 is a deficient number, since it is larger than the sum of its proper divisors (338503115121400).

451164143064644 is a wasteful number, since it uses less digits than its factorization.

451164143064644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18572546134 (or 18572546132 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 53.

The spelling of 451164143064644 in words is "four hundred fifty-one trillion, one hundred sixty-four billion, one hundred forty-three million, sixty-four thousand, six hundred forty-four".