15512130240 has 224 divisors, whose sum is σ = 50702016960. Its totient is φ = 4015718400.

The previous prime is 15512130217. The next prime is 15512130253. The reversal of 15512130240 is 4203121551.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 15512130240.

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, 9012580 + ... + 9014300.

It is an arithmetic number, because the mean of its divisors is an integer number (226348290).

Almost surely, 2^15512130240 is an apocalyptic number.

15512130240 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 15512130240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25351008480).

15512130240 is an abundant number, since it is smaller than the sum of its proper divisors (35189886720).

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

15512130240 is a wasteful number, since it uses less digits than its factorization.

15512130240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011 (or 2001 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 15512130240 its reverse (4203121551), we get a palindrome (19715251791).

The spelling of 15512130240 in words is "fifteen billion, five hundred twelve million, one hundred thirty thousand, two hundred forty".