11550141040 has 80 divisors (see below), whose sum is σ = 28349748000. Its totient is φ = 4364153856.

The previous prime is 11550140993. The next prime is 11550141079. The reversal of 11550141040 is 4014105511.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 519594 + ... + 541366.

It is an arithmetic number, because the mean of its divisors is an integer number (354371850).

Almost surely, 2^11550141040 is an apocalyptic number.

11550141040 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 11550141040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14174874000).

11550141040 is an abundant number, since it is smaller than the sum of its proper divisors (16799606960).

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

11550141040 is a wasteful number, since it uses less digits than its factorization.

11550141040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22154 (or 22148 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 22.

Adding to 11550141040 its reverse (4014105511), we get a palindrome (15564246551).

The spelling of 11550141040 in words is "eleven billion, five hundred fifty million, one hundred forty-one thousand, forty".