144621616436 has 24 divisors (see below), whose sum is σ = 292336744896. Its totient is φ = 61870209920.

The previous prime is 144621616429. The next prime is 144621616457. The reversal of 144621616436 is 634616126441.

It is a happy number.

144621616436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96671456 + ... + 96672951.

It is an arithmetic number, because the mean of its divisors is an integer number (12180697704).

Almost surely, 2^144621616436 is an apocalyptic number.

It is an amenable number.

144621616436 is an abundant number, since it is smaller than the sum of its proper divisors (147715128460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144621616436 is a wasteful number, since it uses less digits than its factorization.

144621616436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193344439 (or 193344437 counting only the distinct ones).

The product of its digits is 497664, while the sum is 44.

The spelling of 144621616436 in words is "one hundred forty-four billion, six hundred twenty-one million, six hundred sixteen thousand, four hundred thirty-six".