15504030216 has 96 divisors (see below), whose sum is σ = 42853014360. Its totient is φ = 5062127616.

The previous prime is 15504030161. The next prime is 15504030221. The reversal of 15504030216 is 61203040551.

It can be written as a sum of positive squares in 4 ways, for example, as 11546362116 + 3957668100 = 107454^2 + 62910^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 15504030216.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2565150 + ... + 2571186.

Almost surely, 2^15504030216 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 15504030216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21426507180).

15504030216 is an abundant number, since it is smaller than the sum of its proper divisors (27348984144).

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

15504030216 is a wasteful number, since it uses less digits than its factorization.

15504030216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6775 (or 6768 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 15504030216 its reverse (61203040551), we get a palindrome (76707070767).

The spelling of 15504030216 in words is "fifteen billion, five hundred four million, thirty thousand, two hundred sixteen".