1445305322666 has 32 divisors (see below), whose sum is σ = 2278084960512. Its totient is φ = 686902507200.

The previous prime is 1445305322609. The next prime is 1445305322701. The reversal of 1445305322666 is 6662235035441.

It is a super-3 number, since 3×1445305322666³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a self number, because there is not a number n which added to its sum of digits gives 1445305322666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1522616 + ... + 2282316.

It is an arithmetic number, because the mean of its divisors is an integer number (71190155016).

Almost surely, 2^{1445305322666} is an apocalyptic number.

1445305322666 is a deficient number, since it is larger than the sum of its proper divisors (832779637846).

1445305322666 is a wasteful number, since it uses less digits than its factorization.

1445305322666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760334.

The product of its (nonzero) digits is 3110400, while the sum is 47.

The spelling of 1445305322666 in words is "one trillion, four hundred forty-five billion, three hundred five million, three hundred twenty-two thousand, six hundred sixty-six".