1121167866 has 32 divisors (see below), whose sum is σ = 2759799168. Its totient is φ = 295692480.

The previous prime is 1121167841. The next prime is 1121167871. The reversal of 1121167866 is 6687611211.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1026165 + ... + 1027256.

It is an arithmetic number, because the mean of its divisors is an integer number (86243724).

Almost surely, 2^1121167866 is an apocalyptic number.

1121167866 is an abundant number, since it is smaller than the sum of its proper divisors (1638631302).

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

1121167866 is a wasteful number, since it uses less digits than its factorization.

1121167866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2053446.

The product of its digits is 24192, while the sum is 39.

The square root of 1121167866 is about 33483.8448509128. The cubic root of 1121167866 is about 1038.8596555351.

The spelling of 1121167866 in words is "one billion, one hundred twenty-one million, one hundred sixty-seven thousand, eight hundred sixty-six".