15936318552 has 384 divisors, whose sum is σ = 54422323200. Its totient is φ = 3794947200.

The previous prime is 15936318547. The next prime is 15936318553. The reversal of 15936318552 is 25581363951.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15936318553) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 514074777 + ... + 514074807.

It is an arithmetic number, because the mean of its divisors is an integer number (141724800).

Almost surely, 2^15936318552 is an apocalyptic number.

15936318552 is a gapful number since it is divisible by the number (12) 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 15936318552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27211161600).

15936318552 is an abundant number, since it is smaller than the sum of its proper divisors (38486004648).

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

15936318552 is an equidigital number, since it uses as much as digits as its factorization.

15936318552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121 (or 73 counting only the distinct ones).

The product of its digits is 972000, while the sum is 48.

The spelling of 15936318552 in words is "fifteen billion, nine hundred thirty-six million, three hundred eighteen thousand, five hundred fifty-two".