1445320205611 has 4 divisors (see below), whose sum is σ = 1458827871192. Its totient is φ = 1431812540032.

The previous prime is 1445320205579. The next prime is 1445320205687. The reversal of 1445320205611 is 1165020235441.

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 1445320205611 - 2⁵ = 1445320205579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1445320205411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6753832630 + ... + 6753832843.

It is an arithmetic number, because the mean of its divisors is an integer number (364706967798).

Almost surely, 2^{1445320205611} is an apocalyptic number.

1445320205611 is a deficient number, since it is larger than the sum of its proper divisors (13507665581).

1445320205611 is a wasteful number, since it uses less digits than its factorization.

1445320205611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13507665580.

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 1445320205611 in words is "one trillion, four hundred forty-five billion, three hundred twenty million, two hundred five thousand, six hundred eleven".