1966052105 has 4 divisors (see below), whose sum is σ = 2359262532. Its totient is φ = 1572841680.

The previous prime is 1966052093. The next prime is 1966052111. The reversal of 1966052105 is 5012506691.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5012506691 = 4073 ⋅1230667.

It can be written as a sum of positive squares in 2 ways, for example, as 568488649 + 1397563456 = 23843^2 + 37384^2 .

It is not a de Polignac number, because 1966052105 - 2⁸ = 1966051849 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, 196605206 + ... + 196605215.

It is an arithmetic number, because the mean of its divisors is an integer number (589815633).

Almost surely, 2^1966052105 is an apocalyptic number.

It is an amenable number.

1966052105 is a deficient number, since it is larger than the sum of its proper divisors (393210427).

1966052105 is an equidigital number, since it uses as much as digits as its factorization.

1966052105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393210426.

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 1966052105 is about 44340.1861182382. The cubic root of 1966052105 is about 1252.7517203829.

Adding to 1966052105 its reverse (5012506691), we get a palindrome (6978558796).

The spelling of 1966052105 in words is "one billion, nine hundred sixty-six million, fifty-two thousand, one hundred five".