1066071117 has 16 divisors (see below), whose sum is σ = 1481192640. Its totient is φ = 681190272.

The previous prime is 1066071113. The next prime is 1066071143. The reversal of 1066071117 is 7111706601.

It is not a de Polignac number, because 1066071117 - 2² = 1066071113 is a prime.

It is a super-2 number, since 2×1066071117² = 2273015253003255378, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066071113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32803 + ... + 56640.

It is an arithmetic number, because the mean of its divisors is an integer number (92574540).

Almost surely, 2^1066071117 is an apocalyptic number.

It is an amenable number.

1066071117 is a deficient number, since it is larger than the sum of its proper divisors (415121523).

1066071117 is a wasteful number, since it uses less digits than its factorization.

1066071117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89612.

The product of its (nonzero) digits is 1764, while the sum is 30.

The square root of 1066071117 is about 32650.7445091226. The cubic root of 1066071117 is about 1021.5557180710. Note that the first 3 decimals are identical.

Adding to 1066071117 its reverse (7111706601), we get a palindrome (8177777718).

The spelling of 1066071117 in words is "one billion, sixty-six million, seventy-one thousand, one hundred seventeen".