144446361661 has 8 divisors (see below), whose sum is σ = 165091034304. Its totient is φ = 123804058560.

The previous prime is 144446361611. The next prime is 144446361671. The reversal of 144446361661 is 166163644441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 144446361661 - 2²⁵ = 144412807229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144446361611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 459775 + ... + 707308.

It is an arithmetic number, because the mean of its divisors is an integer number (20636379288).

Almost surely, 2^144446361661 is an apocalyptic number.

It is an amenable number.

144446361661 is a deficient number, since it is larger than the sum of its proper divisors (20644672643).

144446361661 is a wasteful number, since it uses less digits than its factorization.

144446361661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184771.

The product of its digits is 995328, while the sum is 46.

The spelling of 144446361661 in words is "one hundred forty-four billion, four hundred forty-six million, three hundred sixty-one thousand, six hundred sixty-one".