1966089325 has 18 divisors (see below), whose sum is σ = 2484906494. Its totient is φ = 1543139520.

The previous prime is 1966089317. The next prime is 1966089337. The reversal of 1966089325 is 5239806691.

It can be written as a sum of positive squares in 9 ways, for example, as 2979076 + 1963110249 = 1726^2 + 44307^2 .

It is not a de Polignac number, because 1966089325 - 2³ = 1966089317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 56227 + ... + 84223.

Almost surely, 2^1966089325 is an apocalyptic number.

It is an amenable number.

1966089325 is a deficient number, since it is larger than the sum of its proper divisors (518817169).

1966089325 is an equidigital number, since it uses as much as digits as its factorization.

1966089325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28113 (or 28055 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 49.

The square root of 1966089325 is about 44340.6058258116. The cubic root of 1966089325 is about 1252.7596257558.

The spelling of 1966089325 in words is "one billion, nine hundred sixty-six million, eighty-nine thousand, three hundred twenty-five".