15142304520 has 192 divisors, whose sum is σ = 56558736000. Its totient is φ = 3441659904.

The previous prime is 15142304497. The next prime is 15142304579. The reversal of 15142304520 is 2540324151.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 434296 + ... + 467864.

It is an arithmetic number, because the mean of its divisors is an integer number (294576750).

Almost surely, 2^15142304520 is an apocalyptic number.

15142304520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15142304520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28279368000).

15142304520 is an abundant number, since it is smaller than the sum of its proper divisors (41416431480).

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

15142304520 is a wasteful number, since it uses less digits than its factorization.

15142304520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33772 (or 33765 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 15142304520 its reverse (2540324151), we get a palindrome (17682628671).

The spelling of 15142304520 in words is "fifteen billion, one hundred forty-two million, three hundred four thousand, five hundred twenty".