1071166555 has 8 divisors (see below), whose sum is σ = 1287237744. Its totient is φ = 855708000.

The previous prime is 1071166489. The next prime is 1071166559. The reversal of 1071166555 is 5556611701.

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

It is not a de Polignac number, because 1071166555 - 2⁷ = 1071166427 is a prime.

It is a super-2 number, since 2×1071166555² = 2294795577101136050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1071166559) by changing a digit.

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, 149301 + ... + 156310.

It is an arithmetic number, because the mean of its divisors is an integer number (160904718).

Almost surely, 2^1071166555 is an apocalyptic number.

1071166555 is a deficient number, since it is larger than the sum of its proper divisors (216071189).

1071166555 is an equidigital number, since it uses as much as digits as its factorization.

1071166555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306317.

The product of its (nonzero) digits is 31500, while the sum is 37.

The square root of 1071166555 is about 32728.6809236180. The cubic root of 1071166555 is about 1023.1806886690.

The spelling of 1071166555 in words is "one billion, seventy-one million, one hundred sixty-six thousand, five hundred fifty-five".