1966866033 has 8 divisors (see below), whose sum is σ = 2860896096. Its totient is φ = 1192040000.

The previous prime is 1966866001. The next prime is 1966866037. The reversal of 1966866033 is 3306686691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1966866033 - 2⁵ = 1966866001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1966866037) 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, 29800968 + ... + 29801033.

It is an arithmetic number, because the mean of its divisors is an integer number (357612012).

Almost surely, 2^1966866033 is an apocalyptic number.

It is an amenable number.

1966866033 is a deficient number, since it is larger than the sum of its proper divisors (894030063).

1966866033 is a wasteful number, since it uses less digits than its factorization.

1966866033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59602015.

The product of its (nonzero) digits is 839808, while the sum is 48.

The square root of 1966866033 is about 44349.3633888921. The cubic root of 1966866033 is about 1252.9245725373.

The spelling of 1966866033 in words is "one billion, nine hundred sixty-six million, eight hundred sixty-six thousand, thirty-three".