11113556665 has 8 divisors (see below), whose sum is σ = 14038176960. Its totient is φ = 8422906032.

The previous prime is 11113556609. The next prime is 11113556687. The reversal of 11113556665 is 56665531111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11113556665 - 2²³ = 11105168057 is a prime.

It is a super-2 number, since 2×11113556665² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58492309 + ... + 58492498.

It is an arithmetic number, because the mean of its divisors is an integer number (1754772120).

Almost surely, 2^11113556665 is an apocalyptic number.

It is an amenable number.

11113556665 is a deficient number, since it is larger than the sum of its proper divisors (2924620295).

11113556665 is a wasteful number, since it uses less digits than its factorization.

11113556665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116984831.

The product of its digits is 81000, while the sum is 40.

The spelling of 11113556665 in words is "eleven billion, one hundred thirteen million, five hundred fifty-six thousand, six hundred sixty-five".