1155055066 has 16 divisors (see below), whose sum is σ = 1890615168. Its totient is φ = 524879200.

The previous prime is 1155055043. The next prime is 1155055067. The reversal of 1155055066 is 6605505511.

It is not an unprimeable number, because it can be changed into a prime (1155055067) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 138351 + ... + 146461.

It is an arithmetic number, because the mean of its divisors is an integer number (118163448).

Almost surely, 2^1155055066 is an apocalyptic number.

1155055066 is a deficient number, since it is larger than the sum of its proper divisors (735560102).

1155055066 is a wasteful number, since it uses less digits than its factorization.

1155055066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14597.

The product of its (nonzero) digits is 22500, while the sum is 34.

The square root of 1155055066 is about 33986.1010708790. The cubic root of 1155055066 is about 1049.2224223417. Note that the first 3 decimals are identical.

The spelling of 1155055066 in words is "one billion, one hundred fifty-five million, fifty-five thousand, sixty-six".