15530110540 has 72 divisors (see below), whose sum is σ = 37627742880. Its totient is φ = 5274302208.

The previous prime is 15530110513. The next prime is 15530110543. The reversal of 15530110540 is 4501103551.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (15530110543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1598016 + ... + 1607704.

It is an arithmetic number, because the mean of its divisors is an integer number (522607540).

Almost surely, 2^15530110540 is an apocalyptic number.

15530110540 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 15530110540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18813871440).

15530110540 is an abundant number, since it is smaller than the sum of its proper divisors (22097632340).

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

15530110540 is a wasteful number, since it uses less digits than its factorization.

15530110540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9919 (or 9810 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

The spelling of 15530110540 in words is "fifteen billion, five hundred thirty million, one hundred ten thousand, five hundred forty".