11166712166555 has 32 divisors (see below), whose sum is σ = 15007432163328. Its totient is φ = 7906837475200.

The previous prime is 11166712166539. The next prime is 11166712166567. The reversal of 11166712166555 is 55566121766111.

It is not a de Polignac number, because 11166712166555 - 2⁴ = 11166712166539 is a prime.

It is a super-2 number, since 2×11166712166555² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11166712166497 and 11166712166506.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10814672 + ... + 11802141.

It is an arithmetic number, because the mean of its divisors is an integer number (468982255104).

Almost surely, 2^{11166712166555} is an apocalyptic number.

11166712166555 is a deficient number, since it is larger than the sum of its proper divisors (3840719996773).

11166712166555 is a wasteful number, since it uses less digits than its factorization.

11166712166555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22617067.

The product of its digits is 2268000, while the sum is 53.

The spelling of 11166712166555 in words is "eleven trillion, one hundred sixty-six billion, seven hundred twelve million, one hundred sixty-six thousand, five hundred fifty-five".