11111139556 has 12 divisors (see below), whose sum is σ = 21212175600. Its totient is φ = 5050517960.

The previous prime is 11111139539. The next prime is 11111139563. The reversal of 11111139556 is 65593111111.

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, 126262906 + ... + 126262993.

It is an arithmetic number, because the mean of its divisors is an integer number (1767681300).

Almost surely, 2^11111139556 is an apocalyptic number.

It is an amenable number.

11111139556 is a deficient number, since it is larger than the sum of its proper divisors (10101036044).

11111139556 is a wasteful number, since it uses less digits than its factorization.

11111139556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252525914 (or 252525912 counting only the distinct ones).

The product of its digits is 4050, while the sum is 34.

The spelling of 11111139556 in words is "eleven billion, one hundred eleven million, one hundred thirty-nine thousand, five hundred fifty-six".