144443065406666 has 12 divisors (see below), whose sum is σ = 234613144699542. Its totient is φ = 66666030187536.

The previous prime is 144443065406657. The next prime is 144443065406723. The reversal of 144443065406666 is 666604560344441.

It can be written as a sum of positive squares in 3 ways, for example, as 94077487416025 + 50365577990641 = 9699355^2 + 7096871^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 213673173341 + ... + 213673174016.

Almost surely, 2^{144443065406666} is an apocalyptic number.

144443065406666 is a deficient number, since it is larger than the sum of its proper divisors (90170079292876).

144443065406666 is a wasteful number, since it uses less digits than its factorization.

144443065406666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427346347385 (or 427346347372 counting only the distinct ones).

The product of its (nonzero) digits is 119439360, while the sum is 59.

The spelling of 144443065406666 in words is "one hundred forty-four trillion, four hundred forty-three billion, sixty-five million, four hundred six thousand, six hundred sixty-six".