1566055066 has 16 divisors (see below), whose sum is σ = 2360793600. Its totient is φ = 779131408.

The previous prime is 1566055063. The next prime is 1566055091. The reversal of 1566055066 is 6605506651.

It is not an unprimeable number, because it can be changed into a prime (1566055063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 755880 + ... + 757948.

It is an arithmetic number, because the mean of its divisors is an integer number (147549600).

Almost surely, 2^1566055066 is an apocalyptic number.

1566055066 is a deficient number, since it is larger than the sum of its proper divisors (794738534).

1566055066 is a wasteful number, since it uses less digits than its factorization.

1566055066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3773.

The product of its (nonzero) digits is 162000, while the sum is 40.

The square root of 1566055066 is about 39573.4136258170. The cubic root of 1566055066 is about 1161.2766033757.

The spelling of 1566055066 in words is "one billion, five hundred sixty-six million, fifty-five thousand, sixty-six".