1066161001 has 8 divisors (see below), whose sum is σ = 1129718664. Its totient is φ = 1002696960.

The previous prime is 1066160999. The next prime is 1066161013. The reversal of 1066161001 is 1001616601.

It can be written as a sum of positive squares in 4 ways, for example, as 32216976 + 1033944025 = 5676^2 + 32155^2 .

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 1066161001 - 2¹ = 1066160999 is a prime.

It is a super-2 number, since 2×1066161001² = 2273398560106644002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1066161101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 771 + ... + 46183.

It is an arithmetic number, because the mean of its divisors is an integer number (141214833).

Almost surely, 2^1066161001 is an apocalyptic number.

It is an amenable number.

1066161001 is a deficient number, since it is larger than the sum of its proper divisors (63557663).

1066161001 is a wasteful number, since it uses less digits than its factorization.

1066161001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46811.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 1066161001 is about 32652.1209265187. The cubic root of 1066161001 is about 1021.5844275170.

Adding to 1066161001 its reverse (1001616601), we get a palindrome (2067777602).

The spelling of 1066161001 in words is "one billion, sixty-six million, one hundred sixty-one thousand, one".