11115614540 has 24 divisors (see below), whose sum is σ = 23384722032. Its totient is φ = 4438258880.

The previous prime is 11115614519. The next prime is 11115614579. The reversal of 11115614540 is 4541651111.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 487766 + ... + 510045.

It is an arithmetic number, because the mean of its divisors is an integer number (974363418).

Almost surely, 2^11115614540 is an apocalyptic number.

11115614540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11115614540 is an abundant number, since it is smaller than the sum of its proper divisors (12269107492).

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

11115614540 is a wasteful number, since it uses less digits than its factorization.

11115614540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998377 (or 998375 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 29.

The spelling of 11115614540 in words is "eleven billion, one hundred fifteen million, six hundred fourteen thousand, five hundred forty".