1161011006 has 4 divisors (see below), whose sum is σ = 1741516512. Its totient is φ = 580505502.

The previous prime is 1161010943. The next prime is 1161011011. The reversal of 1161011006 is 6001101611.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 290252750 + ... + 290252753.

It is an arithmetic number, because the mean of its divisors is an integer number (435379128).

Almost surely, 2^1161011006 is an apocalyptic number.

1161011006 is a deficient number, since it is larger than the sum of its proper divisors (580505506).

1161011006 is an equidigital number, since it uses as much as digits as its factorization.

1161011006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580505505.

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 1161011006 is about 34073.6115784635. The cubic root of 1161011006 is about 1051.0227392424.

Adding to 1161011006 its reverse (6001101611), we get a palindrome (7162112617).

The spelling of 1161011006 in words is "one billion, one hundred sixty-one million, eleven thousand, six".