15531352104 has 128 divisors (see below), whose sum is σ = 40466160000. Its totient is φ = 4964696064.

The previous prime is 15531352103. The next prime is 15531352127. The reversal of 15531352104 is 40125313551.

15531352104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (15531352103) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 10025922 + ... + 10027470.

It is an arithmetic number, because the mean of its divisors is an integer number (316141875).

Almost surely, 2^15531352104 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 15531352104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20233080000).

15531352104 is an abundant number, since it is smaller than the sum of its proper divisors (24934807896).

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

15531352104 is a wasteful number, since it uses less digits than its factorization.

15531352104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787 (or 1783 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 15531352104 its reverse (40125313551), we get a palindrome (55656665655).

The spelling of 15531352104 in words is "fifteen billion, five hundred thirty-one million, three hundred fifty-two thousand, one hundred four".