1966295673 has 6 divisors (see below), whose sum is σ = 2840204874. Its totient is φ = 1310863776.

The previous prime is 1966295663. The next prime is 1966295677. The reversal of 1966295673 is 3765926691.

1966295673 is a `hidden beast` number, since 1 + 9 + 6 + 629 + 5 + 6 + 7 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1695133584 + 271162089 = 41172^2 + 16467^2 .

It is not a de Polignac number, because 1966295673 - 2⁶ = 1966295609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1966295677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 109238640 + ... + 109238657.

It is an arithmetic number, because the mean of its divisors is an integer number (473367479).

Almost surely, 2^1966295673 is an apocalyptic number.

It is an amenable number.

1966295673 is a deficient number, since it is larger than the sum of its proper divisors (873909201).

1966295673 is a wasteful number, since it uses less digits than its factorization.

1966295673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218477303 (or 218477300 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 54.

The square root of 1966295673 is about 44342.9326161453. The cubic root of 1966295673 is about 1252.8034514011.

The spelling of 1966295673 in words is "one billion, nine hundred sixty-six million, two hundred ninety-five thousand, six hundred seventy-three".