1167981011 has 8 divisors (see below), whose sum is σ = 1174060800. Its totient is φ = 1161917640.

The previous prime is 1167980993. The next prime is 1167981013. The reversal of 1167981011 is 1101897611.

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 1167981011 - 2¹⁰ = 1167979987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1167981013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153896 + ... + 161306.

It is an arithmetic number, because the mean of its divisors is an integer number (146757600).

Almost surely, 2^1167981011 is an apocalyptic number.

1167981011 is a deficient number, since it is larger than the sum of its proper divisors (6079789).

1167981011 is an equidigital number, since it uses as much as digits as its factorization.

1167981011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8209.

The product of its (nonzero) digits is 3024, while the sum is 35.

The square root of 1167981011 is about 34175.7371683480. The cubic root of 1167981011 is about 1053.1217784579.

The spelling of 1167981011 in words is "one billion, one hundred sixty-seven million, nine hundred eighty-one thousand, eleven".