11177222540 has 36 divisors (see below), whose sum is σ = 25799991168. Its totient is φ = 4064443680.

The previous prime is 11177222533. The next prime is 11177222599. The reversal of 11177222540 is 4522277111.

It is a junction number, because it is equal to n+sod(n) for n = 11177222497 and 11177222506.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2306924 + ... + 2311763.

Almost surely, 2^11177222540 is an apocalyptic number.

11177222540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11177222540 is an abundant number, since it is smaller than the sum of its proper divisors (14622768628).

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

11177222540 is a wasteful number, since it uses less digits than its factorization.

11177222540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4618718 (or 4618705 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 32.

Adding to 11177222540 its reverse (4522277111), we get a palindrome (15699499651).

The spelling of 11177222540 in words is "eleven billion, one hundred seventy-seven million, two hundred twenty-two thousand, five hundred forty".