15315055452144 has 120 divisors (see below), whose sum is σ = 51865271883360. Its totient is φ = 4118334234624.

The previous prime is 15315055452113. The next prime is 15315055452149. The reversal of 15315055452144 is 44125455051351.

15315055452144 is a `hidden beast` number, since 1 + 5 + 3 + 1 + 5 + 0 + 55 + 452 + 144 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 15315055452144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15315055452149) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 446850729 + ... + 446885000.

It is an arithmetic number, because the mean of its divisors is an integer number (432210599028).

Almost surely, 2^{15315055452144} is an apocalyptic number.

15315055452144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

15315055452144 is an abundant number, since it is smaller than the sum of its proper divisors (36550216431216).

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

15315055452144 is a wasteful number, since it uses less digits than its factorization.

15315055452144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893735767 (or 893735758 counting only the distinct ones).

The product of its (nonzero) digits is 1200000, while the sum is 45.

The spelling of 15315055452144 in words is "fifteen trillion, three hundred fifteen billion, fifty-five million, four hundred fifty-two thousand, one hundred forty-four".