144661677436 has 96 divisors (see below), whose sum is σ = 268164691200. Its totient is φ = 68210688000.

The previous prime is 144661677431. The next prime is 144661677467. The reversal of 144661677436 is 634776166441.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144661677431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 322186140 + ... + 322186588.

It is an arithmetic number, because the mean of its divisors is an integer number (2793382200).

Almost surely, 2^144661677436 is an apocalyptic number.

It is an amenable number.

144661677436 is a deficient number, since it is larger than the sum of its proper divisors (123503013764).

144661677436 is a wasteful number, since it uses less digits than its factorization.

144661677436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015 (or 1013 counting only the distinct ones).

The product of its digits is 12192768, while the sum is 55.

The spelling of 144661677436 in words is "one hundred forty-four billion, six hundred sixty-one million, six hundred seventy-seven thousand, four hundred thirty-six".