15324420144 has 160 divisors (see below), whose sum is σ = 44209670400. Its totient is φ = 4535111680.

The previous prime is 15324420131. The next prime is 15324420187. The reversal of 15324420144 is 44102442351.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3898372 + ... + 3902300.

It is an arithmetic number, because the mean of its divisors is an integer number (276310440).

Almost surely, 2^15324420144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15324420144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22104835200).

15324420144 is an abundant number, since it is smaller than the sum of its proper divisors (28885250256).

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

15324420144 is a wasteful number, since it uses less digits than its factorization.

15324420144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4123 (or 4117 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 15324420144 its reverse (44102442351), we get a palindrome (59426862495).

The spelling of 15324420144 in words is "fifteen billion, three hundred twenty-four million, four hundred twenty thousand, one hundred forty-four".