144440634164454 has 80 divisors (see below), whose sum is σ = 331584936883200. Its totient is φ = 46967332844160.

The previous prime is 144440634164341. The next prime is 144440634164549. The reversal of 144440634164454 is 454461436044441.

It is a happy number.

144440634164454 is a `hidden beast` number, since 1 + 4 + 4 + 4 + 406 + 34 + 164 + 45 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 144440634164454.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 58657947 + ... + 61070745.

It is an arithmetic number, because the mean of its divisors is an integer number (4144811711040).

Almost surely, 2^{144440634164454} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144440634164454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165792468441600).

144440634164454 is an abundant number, since it is smaller than the sum of its proper divisors (187144302718746).

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

144440634164454 is a wasteful number, since it uses less digits than its factorization.

144440634164454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2421867 (or 2421858 counting only the distinct ones).

The product of its (nonzero) digits is 35389440, while the sum is 54.

The spelling of 144440634164454 in words is "one hundred forty-four trillion, four hundred forty billion, six hundred thirty-four million, one hundred sixty-four thousand, four hundred fifty-four".