13591191552 has 112 divisors (see below), whose sum is σ = 38373966432. Its totient is φ = 4263772160.

The previous prime is 13591191547. The next prime is 13591191577. The reversal of 13591191552 is 25519119531.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401527 + ... + 434057.

Almost surely, 2^13591191552 is an apocalyptic number.

13591191552 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 13591191552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19186983216).

13591191552 is an abundant number, since it is smaller than the sum of its proper divisors (24782774880).

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

13591191552 is an equidigital number, since it uses as much as digits as its factorization.

13591191552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32577 (or 32553 counting only the distinct ones).

The product of its digits is 60750, while the sum is 42.

It can be divided in two parts, 1359 and 1191552, that added together give a palindrome (1192911).

The spelling of 13591191552 in words is "thirteen billion, five hundred ninety-one million, one hundred ninety-one thousand, five hundred fifty-two".