1444107666671 has 32 divisors (see below), whose sum is σ = 1497119500800. Its totient is φ = 1392431040000.

The previous prime is 1444107666667. The next prime is 1444107666679. The reversal of 1444107666671 is 1766667014441.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1444107666671 - 2² = 1444107666667 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444107666679) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 246810896 + ... + 246816746.

It is an arithmetic number, because the mean of its divisors is an integer number (46784984400).

Almost surely, 2^{1444107666671} is an apocalyptic number.

1444107666671 is a deficient number, since it is larger than the sum of its proper divisors (53011834129).

1444107666671 is a wasteful number, since it uses less digits than its factorization.

1444107666671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6431.

The product of its (nonzero) digits is 4064256, while the sum is 53.

The spelling of 1444107666671 in words is "one trillion, four hundred forty-four billion, one hundred seven million, six hundred sixty-six thousand, six hundred seventy-one".