1445679660121 has 2 divisors, whose sum is σ = 1445679660122. Its totient is φ = 1445679660120.

The previous prime is 1445679660109. The next prime is 1445679660137. The reversal of 1445679660121 is 1210669765441.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1413568812096 + 32110848025 = 1188936^2 + 179195^2 .

It is a cyclic number.

It is not a de Polignac number, because 1445679660121 - 2¹⁹ = 1445679135833 is a prime.

It is not a weakly prime, because it can be changed into another prime (1445679660151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722839830060 + 722839830061.

It is an arithmetic number, because the mean of its divisors is an integer number (722839830061).

Almost surely, 2^{1445679660121} is an apocalyptic number.

It is an amenable number.

1445679660121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445679660121 is an equidigital number, since it uses as much as digits as its factorization.

1445679660121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 1445679660121 in words is "one trillion, four hundred forty-five billion, six hundred seventy-nine million, six hundred sixty thousand, one hundred twenty-one".