1161016611 has 16 divisors (see below), whose sum is σ = 1560649728. Its totient is φ = 767721600.

The previous prime is 1161016589. The next prime is 1161016613. The reversal of 1161016611 is 1166101611.

It is not a de Polignac number, because 1161016611 - 2¹⁰ = 1161015587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1161016613) 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, 207531 + ... + 213051.

It is an arithmetic number, because the mean of its divisors is an integer number (97540608).

Almost surely, 2^1161016611 is an apocalyptic number.

1161016611 is a deficient number, since it is larger than the sum of its proper divisors (399633117).

1161016611 is a wasteful number, since it uses less digits than its factorization.

1161016611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6082.

The product of its (nonzero) digits is 216, while the sum is 24.

The square root of 1161016611 is about 34073.6938267632. The cubic root of 1161016611 is about 1051.0244305766.

The spelling of 1161016611 in words is "one billion, one hundred sixty-one million, sixteen thousand, six hundred eleven".