1066816366 has 32 divisors (see below), whose sum is σ = 2005585920. Its totient is φ = 413455200.

The previous prime is 1066816349. The next prime is 1066816391. The reversal of 1066816366 is 6636186601.

It is a super-2 number, since 2×1066816366² = 2276194317530891912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 11280 + ... + 47548.

It is an arithmetic number, because the mean of its divisors is an integer number (62674560).

Almost surely, 2^1066816366 is an apocalyptic number.

1066816366 is a deficient number, since it is larger than the sum of its proper divisors (938769554).

1066816366 is a wasteful number, since it uses less digits than its factorization.

1066816366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36480.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 1066816366 is about 32662.1549503397. The cubic root of 1066816366 is about 1021.7937059602.

The spelling of 1066816366 in words is "one billion, sixty-six million, eight hundred sixteen thousand, three hundred sixty-six".