1316649266 has 8 divisors (see below), whose sum is σ = 1980633900. Its totient is φ = 656437968.

The previous prime is 1316649263. The next prime is 1316649307. The reversal of 1316649266 is 6629466131.

It can be written as a sum of positive squares in 2 ways, for example, as 1272705625 + 43943641 = 35675^2 + 6629^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1316649263) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 942461 + ... + 943856.

Almost surely, 2^1316649266 is an apocalyptic number.

1316649266 is a deficient number, since it is larger than the sum of its proper divisors (663984634).

1316649266 is a wasteful number, since it uses less digits than its factorization.

1316649266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1886668.

The product of its digits is 279936, while the sum is 44.

The square root of 1316649266 is about 36285.6619892761. The cubic root of 1316649266 is about 1096.0323357226.

The spelling of 1316649266 in words is "one billion, three hundred sixteen million, six hundred forty-nine thousand, two hundred sixty-six".