144709866657 has 64 divisors (see below), whose sum is σ = 219183148800. Its totient is φ = 94343961600.

The previous prime is 144709866643. The next prime is 144709866677. The reversal of 144709866657 is 756668907441.

It is a happy number.

It is not a de Polignac number, because 144709866657 - 2⁶ = 144709866593 is a prime.

It is a super-3 number, since 3×144709866657³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 144709866594 and 144709866603.

It is not an unprimeable number, because it can be changed into a prime (144709866617) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 114939694 + ... + 114940952.

It is an arithmetic number, because the mean of its divisors is an integer number (3424736700).

Almost surely, 2^144709866657 is an apocalyptic number.

It is an amenable number.

144709866657 is a deficient number, since it is larger than the sum of its proper divisors (74473282143).

144709866657 is a wasteful number, since it uses less digits than its factorization.

144709866657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1855 (or 1849 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 63.

The spelling of 144709866657 in words is "one hundred forty-four billion, seven hundred nine million, eight hundred sixty-six thousand, six hundred fifty-seven".