144665623412 has 12 divisors (see below), whose sum is σ = 253210339620. Its totient is φ = 72319812096.

The previous prime is 144665623409. The next prime is 144665623429. The reversal of 144665623412 is 214326566441.

It can be written as a sum of positive squares in 2 ways, for example, as 35677165456 + 108988457956 = 188884^2 + 330134^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3224843 + ... + 3269394.

It is an arithmetic number, because the mean of its divisors is an integer number (21100861635).

Almost surely, 2^144665623412 is an apocalyptic number.

It is an amenable number.

144665623412 is a deficient number, since it is larger than the sum of its proper divisors (108544716208).

144665623412 is a wasteful number, since it uses less digits than its factorization.

144665623412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6499810 (or 6499808 counting only the distinct ones).

The product of its digits is 829440, while the sum is 44.

The spelling of 144665623412 in words is "one hundred forty-four billion, six hundred sixty-five million, six hundred twenty-three thousand, four hundred twelve".