11551314432 has 160 divisors (see below), whose sum is σ = 35653825152. Its totient is φ = 3254943744.

The previous prime is 11551314431. The next prime is 11551314433. The reversal of 11551314432 is 23441315511.

It is an interprime number because it is at equal distance from previous prime (11551314431) and next prime (11551314433).

It is a self number, because there is not a number n which added to its sum of digits gives 11551314432.

It is not an unprimeable number, because it can be changed into a prime (11551314431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 777538 + ... + 792254.

Almost surely, 2^11551314432 is an apocalyptic number.

11551314432 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 11551314432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17826912576).

11551314432 is an abundant number, since it is smaller than the sum of its proper divisors (24102510720).

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

11551314432 is an equidigital number, since it uses as much as digits as its factorization.

11551314432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14818 (or 14802 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

Adding to 11551314432 its reverse (23441315511), we get a palindrome (34992629943).

The spelling of 11551314432 in words is "eleven billion, five hundred fifty-one million, three hundred fourteen thousand, four hundred thirty-two".