1566066061 has 16 divisors (see below), whose sum is σ = 1896410880. Its totient is φ = 1262488320.

The previous prime is 1566066049. The next prime is 1566066077. The reversal of 1566066061 is 1606606651.

It is a cyclic number.

It is not a de Polignac number, because 1566066061 - 2⁹ = 1566065549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1566066061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1566066031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203400 + ... + 210958.

It is an arithmetic number, because the mean of its divisors is an integer number (118525680).

Almost surely, 2^1566066061 is an apocalyptic number.

It is an amenable number.

1566066061 is a deficient number, since it is larger than the sum of its proper divisors (330344819).

1566066061 is a wasteful number, since it uses less digits than its factorization.

1566066061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9324.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 1566066061 is about 39573.5525445973. The cubic root of 1566066061 is about 1161.2793210763.

The spelling of 1566066061 in words is "one billion, five hundred sixty-six million, sixty-six thousand, sixty-one".