1166001073 has 4 divisors (see below), whose sum is σ = 1166592240. Its totient is φ = 1165409908.

The previous prime is 1166001037. The next prime is 1166001079. The reversal of 1166001073 is 3701006611.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3701006611 = 6421 ⋅576391.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1166001073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1166001079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 292615 + ... + 296572.

It is an arithmetic number, because the mean of its divisors is an integer number (291648060).

Almost surely, 2^1166001073 is an apocalyptic number.

It is an amenable number.

1166001073 is a deficient number, since it is larger than the sum of its proper divisors (591167).

1166001073 is an equidigital number, since it uses as much as digits as its factorization.

1166001073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591166.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 1166001073 is about 34146.7578695255. The cubic root of 1166001073 is about 1052.5263649096.

Adding to 1166001073 its reverse (3701006611), we get a palindrome (4867007684).

The spelling of 1166001073 in words is "one billion, one hundred sixty-six million, one thousand, seventy-three".