1157684866 has 16 divisors (see below), whose sum is σ = 1870714944. Its totient is φ = 534142224.

The previous prime is 1157684861. The next prime is 1157684909. The reversal of 1157684866 is 6684867511.

It is not an unprimeable number, because it can be changed into a prime (1157684861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109965 + ... + 120031.

It is an arithmetic number, because the mean of its divisors is an integer number (116919684).

Almost surely, 2^1157684866 is an apocalyptic number.

1157684866 is a deficient number, since it is larger than the sum of its proper divisors (713030078).

1157684866 is a wasteful number, since it uses less digits than its factorization.

1157684866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14505.

The product of its digits is 1935360, while the sum is 52.

The square root of 1157684866 is about 34024.7684194911. The cubic root of 1157684866 is about 1050.0180997636.

The spelling of 1157684866 in words is "one billion, one hundred fifty-seven million, six hundred eighty-four thousand, eight hundred sixty-six".