11540740880 has 20 divisors (see below), whose sum is σ = 26832222732. Its totient is φ = 4616296320.

The previous prime is 11540740879. The next prime is 11540740943. The reversal of 11540740880 is 8804704511.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8725801744 + 2814939136 = 93412^2 + 53056^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72129551 + ... + 72129710.

Almost surely, 2^11540740880 is an apocalyptic number.

11540740880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11540740880 is an abundant number, since it is smaller than the sum of its proper divisors (15291481852).

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

11540740880 is a wasteful number, since it uses less digits than its factorization.

11540740880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144259274 (or 144259268 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 38.

The spelling of 11540740880 in words is "eleven billion, five hundred forty million, seven hundred forty thousand, eight hundred eighty".