1966756085 has 16 divisors (see below), whose sum is σ = 2701282176. Its totient is φ = 1346624448.

The previous prime is 1966756069. The next prime is 1966756097. The reversal of 1966756085 is 5806576691.

It is a cyclic number.

It is not a de Polignac number, because 1966756085 - 2⁴ = 1966756069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 17807 + ... + 65196.

It is an arithmetic number, because the mean of its divisors is an integer number (168830136).

Almost surely, 2^1966756085 is an apocalyptic number.

It is an amenable number.

1966756085 is a deficient number, since it is larger than the sum of its proper divisors (734526091).

1966756085 is an equidigital number, since it uses as much as digits as its factorization.

1966756085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83692.

The product of its (nonzero) digits is 2721600, while the sum is 53.

The square root of 1966756085 is about 44348.1238047338. The cubic root of 1966756085 is about 1252.9012259010.

The spelling of 1966756085 in words is "one billion, nine hundred sixty-six million, seven hundred fifty-six thousand, eighty-five".