1966314305 has 4 divisors (see below), whose sum is σ = 2359577172. Its totient is φ = 1573051440.

The previous prime is 1966314271. The next prime is 1966314341. The reversal of 1966314305 is 5034136691.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5034136691 = 61 ⋅82526831.

It can be written as a sum of positive squares in 2 ways, for example, as 331567681 + 1634746624 = 18209^2 + 40432^2 .

It is not a de Polignac number, because 1966314305 - 2¹⁰ = 1966313281 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196631426 + ... + 196631435.

It is an arithmetic number, because the mean of its divisors is an integer number (589894293).

Almost surely, 2^1966314305 is an apocalyptic number.

It is an amenable number.

1966314305 is a deficient number, since it is larger than the sum of its proper divisors (393262867).

1966314305 is an equidigital number, since it uses as much as digits as its factorization.

1966314305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393262866.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 1966314305 is about 44343.1427054962. The cubic root of 1966314305 is about 1252.8074084459.

The spelling of 1966314305 in words is "one billion, nine hundred sixty-six million, three hundred fourteen thousand, three hundred five".