15444450120 has 64 divisors (see below), whose sum is σ = 50545477440. Its totient is φ = 3744108800.

The previous prime is 15444450103. The next prime is 15444450149. The reversal of 15444450120 is 2105444451.

15444450120 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 (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5848851 + ... + 5851490.

It is an arithmetic number, because the mean of its divisors is an integer number (789773085).

Almost surely, 2^15444450120 is an apocalyptic number.

15444450120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15444450120 is an abundant number, since it is smaller than the sum of its proper divisors (35101027320).

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

15444450120 is a wasteful number, since it uses less digits than its factorization.

15444450120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11700366 (or 11700362 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 15444450120 its reverse (2105444451), we get a palindrome (17549894571).

It can be divided in two parts, 15444 and 450120, that added together give a palindrome (465564).

The spelling of 15444450120 in words is "fifteen billion, four hundred forty-four million, four hundred fifty thousand, one hundred twenty".