1326856966 has 4 divisors (see below), whose sum is σ = 1990285452. Its totient is φ = 663428482.

The previous prime is 1326856943. The next prime is 1326856967. The reversal of 1326856966 is 6696586231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6696586231 = 7529 ⋅889439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1326856967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331714240 + ... + 331714243.

It is an arithmetic number, because the mean of its divisors is an integer number (497571363).

Almost surely, 2^1326856966 is an apocalyptic number.

1326856966 is a deficient number, since it is larger than the sum of its proper divisors (663428486).

1326856966 is an equidigital number, since it uses as much as digits as its factorization.

1326856966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663428485.

The product of its digits is 2799360, while the sum is 52.

The square root of 1326856966 is about 36426.0479053108. The cubic root of 1326856966 is about 1098.8574820511.

The spelling of 1326856966 in words is "one billion, three hundred twenty-six million, eight hundred fifty-six thousand, nine hundred sixty-six".