1085775866 has 32 divisors (see below), whose sum is σ = 1904653440. Its totient is φ = 454622976.

The previous prime is 1085775833. The next prime is 1085775869. The reversal of 1085775866 is 6685775801.

It is not an unprimeable number, because it can be changed into a prime (1085775869) 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 15 ways as a sum of consecutive naturals, for example, 104390 + ... + 114318.

It is an arithmetic number, because the mean of its divisors is an integer number (59520420).

Almost surely, 2^1085775866 is an apocalyptic number.

1085775866 is a deficient number, since it is larger than the sum of its proper divisors (818877574).

1085775866 is a wasteful number, since it uses less digits than its factorization.

1085775866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10118.

The product of its (nonzero) digits is 2822400, while the sum is 53.

The square root of 1085775866 is about 32951.1132740610. The cubic root of 1085775866 is about 1027.8113156554.

The spelling of 1085775866 in words is "one billion, eighty-five million, seven hundred seventy-five thousand, eight hundred sixty-six".