11229975640 has 96 divisors (see below), whose sum is σ = 27419651280. Its totient is φ = 4137509376.

The previous prime is 11229975629. The next prime is 11229975643. The reversal of 11229975640 is 4657992211.

It is a super-2 number, since 2×11229975640² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11229975643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3696202 + ... + 3699238.

Almost surely, 2^11229975640 is an apocalyptic number.

11229975640 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 11229975640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13709825640).

11229975640 is an abundant number, since it is smaller than the sum of its proper divisors (16189675640).

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

11229975640 is a wasteful number, since it uses less digits than its factorization.

11229975640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3621 (or 3604 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 46.

The spelling of 11229975640 in words is "eleven billion, two hundred twenty-nine million, nine hundred seventy-five thousand, six hundred forty".