1066775198 has 16 divisors (see below), whose sum is σ = 1632318144. Its totient is φ = 522732960.

The previous prime is 1066775191. The next prime is 1066775219. The reversal of 1066775198 is 8915776601.

It is a super-2 number, since 2×1066775198² = 2276018646135878408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066775191) 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 7 ways as a sum of consecutive naturals, for example, 18011 + ... + 49577.

It is an arithmetic number, because the mean of its divisors is an integer number (102019884).

Almost surely, 2^1066775198 is an apocalyptic number.

1066775198 is a deficient number, since it is larger than the sum of its proper divisors (565542946).

1066775198 is a wasteful number, since it uses less digits than its factorization.

1066775198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31907.

The product of its (nonzero) digits is 635040, while the sum is 50.

The square root of 1066775198 is about 32661.5247347701. The cubic root of 1066775198 is about 1021.7805622597.

The spelling of 1066775198 in words is "one billion, sixty-six million, seven hundred seventy-five thousand, one hundred ninety-eight".