1159291866 has 8 divisors (see below), whose sum is σ = 2318583744. Its totient is φ = 386430620.

The previous prime is 1159291853. The next prime is 1159291867. The reversal of 1159291866 is 6681929511.

It is a sphenic number, since it is the product of 3 distinct primes.

1159291866 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1159291867) 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, 96607650 + ... + 96607661.

It is an arithmetic number, because the mean of its divisors is an integer number (289822968).

Almost surely, 2^1159291866 is an apocalyptic number.

1159291866 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1159291866 is a wasteful number, since it uses less digits than its factorization.

1159291866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193215316.

The product of its digits is 233280, while the sum is 48.

The square root of 1159291866 is about 34048.3753797446. The cubic root of 1159291866 is about 1050.5037238393.

The spelling of 1159291866 in words is "one billion, one hundred fifty-nine million, two hundred ninety-one thousand, eight hundred sixty-six".