11080205540 has 12 divisors (see below), whose sum is σ = 23268431676. Its totient is φ = 4432082208.

The previous prime is 11080205519. The next prime is 11080205567. The reversal of 11080205540 is 4550208011.

It can be written as a sum of positive squares in 2 ways, for example, as 6636383296 + 4443822244 = 81464^2 + 66662^2 .

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, 277005119 + ... + 277005158.

It is an arithmetic number, because the mean of its divisors is an integer number (1939035973).

Almost surely, 2^11080205540 is an apocalyptic number.

11080205540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11080205540 is an abundant number, since it is smaller than the sum of its proper divisors (12188226136).

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

11080205540 is a wasteful number, since it uses less digits than its factorization.

11080205540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554010286 (or 554010284 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 26.

The spelling of 11080205540 in words is "eleven billion, eighty million, two hundred five thousand, five hundred forty".