1161160011 has 48 divisors (see below), whose sum is σ = 1886526720. Its totient is φ = 682032960.

The previous prime is 1161159997. The next prime is 1161160031. The reversal of 1161160011 is 1100611611.

1161160011 is a `hidden beast` number, since 1 + 1 + 61 + 1 + 600 + 1 + 1 = 666.

It is not a de Polignac number, because 1161160011 - 2⁶ = 1161159947 is a prime.

It is a super-2 number, since 2×1161160011² = 2696585142291040242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1161160031) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1314576 + ... + 1315458.

It is an arithmetic number, because the mean of its divisors is an integer number (39302640).

Almost surely, 2^1161160011 is an apocalyptic number.

1161160011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1161160011 is a deficient number, since it is larger than the sum of its proper divisors (725366709).

1161160011 is a wasteful number, since it uses less digits than its factorization.

1161160011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296 (or 1293 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The square root of 1161160011 is about 34075.7980244044. The cubic root of 1161160011 is about 1051.0677003275.

Adding to 1161160011 its reverse (1100611611), we get a palindrome (2261771622).

It can be divided in two parts, 11611600 and 11, that added together give a palindrome (11611611).

The spelling of 1161160011 in words is "one billion, one hundred sixty-one million, one hundred sixty thousand, eleven".