1166110555 has 8 divisors (see below), whose sum is σ = 1400831712. Its totient is φ = 931889088.

The previous prime is 1166110531. The next prime is 1166110591. The reversal of 1166110555 is 5550116611.

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 1166110555 - 2¹¹ = 1166108507 is a prime.

It is a Duffinian number.

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, 119767 + ... + 129136.

It is an arithmetic number, because the mean of its divisors is an integer number (175103964).

Almost surely, 2^1166110555 is an apocalyptic number.

1166110555 is a deficient number, since it is larger than the sum of its proper divisors (234721157).

1166110555 is an equidigital number, since it uses as much as digits as its factorization.

1166110555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249845.

The product of its (nonzero) digits is 4500, while the sum is 31.

The square root of 1166110555 is about 34148.3609416323. The cubic root of 1166110555 is about 1052.5593062987.

The spelling of 1166110555 in words is "one billion, one hundred sixty-six million, one hundred ten thousand, five hundred fifty-five".