15530231345 has 8 divisors (see below), whose sum is σ = 18671914176. Its totient is φ = 12400427376.

The previous prime is 15530231329. The next prime is 15530231369. The reversal of 15530231345 is 54313203551.

15530231345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15530231345 - 2⁴ = 15530231329 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2966837 + ... + 2972066.

It is an arithmetic number, because the mean of its divisors is an integer number (2333989272).

Almost surely, 2^15530231345 is an apocalyptic number.

It is an amenable number.

15530231345 is a deficient number, since it is larger than the sum of its proper divisors (3141682831).

15530231345 is an equidigital number, since it uses as much as digits as its factorization.

15530231345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5939431.

The product of its (nonzero) digits is 27000, while the sum is 32.

Adding to 15530231345 its reverse (54313203551), we get a palindrome (69843434896).

The spelling of 15530231345 in words is "fifteen billion, five hundred thirty million, two hundred thirty-one thousand, three hundred forty-five".