1445641442164 has 24 divisors (see below), whose sum is σ = 2685435931080. Its totient is φ = 678588235776.

The previous prime is 1445641442149. The next prime is 1445641442213. The reversal of 1445641442164 is 4612441465441.

It can be written as a sum of positive squares in 4 ways, for example, as 710750163600 + 734891278564 = 843060^2 + 857258^2 .

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, 26748109 + ... + 26802100.

It is an arithmetic number, because the mean of its divisors is an integer number (111893163795).

Almost surely, 2^{1445641442164} is an apocalyptic number.

It is an amenable number.

1445641442164 is a deficient number, since it is larger than the sum of its proper divisors (1239794488916).

1445641442164 is a wasteful number, since it uses less digits than its factorization.

1445641442164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53550627 (or 53550625 counting only the distinct ones).

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

The spelling of 1445641442164 in words is "one trillion, four hundred forty-five billion, six hundred forty-one million, four hundred forty-two thousand, one hundred sixty-four".