144425456661 has 16 divisors (see below), whose sum is σ = 194406386688. Its totient is φ = 95364447600.

The previous prime is 144425456647. The next prime is 144425456671. The reversal of 144425456661 is 166654524441.

It is not a de Polignac number, because 144425456661 - 2⁵ = 144425456629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144425456661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144425456621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1636146 + ... + 1722156.

It is an arithmetic number, because the mean of its divisors is an integer number (12150399168).

Almost surely, 2^144425456661 is an apocalyptic number.

It is an amenable number.

144425456661 is a deficient number, since it is larger than the sum of its proper divisors (49980930027).

144425456661 is a wasteful number, since it uses less digits than its factorization.

144425456661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91352.

The product of its digits is 2764800, while the sum is 48.

The spelling of 144425456661 in words is "one hundred forty-four billion, four hundred twenty-five million, four hundred fifty-six thousand, six hundred sixty-one".