15609231360 has 768 divisors, whose sum is σ = 60925737600. Its totient is φ = 3822059520.

The previous prime is 15609231349. The next prime is 15609231361. The reversal of 15609231360 is 6313290651.

15609231360 is a `hidden beast` number, since 1 + 5 + 60 + 9 + 231 + 360 = 666.

It is a tau number, because it is divible by the number of its divisors (768).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15609231361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 380712940 + ... + 380712980.

Almost surely, 2^15609231360 is an apocalyptic number.

15609231360 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 15609231360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30462868800).

15609231360 is an abundant number, since it is smaller than the sum of its proper divisors (45316506240).

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

15609231360 is an frugal number, since it uses more digits than its factorization.

15609231360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106 (or 68 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The spelling of 15609231360 in words is "fifteen billion, six hundred nine million, two hundred thirty-one thousand, three hundred sixty".