1648292266 has 4 divisors (see below), whose sum is σ = 2472438402. Its totient is φ = 824146132.

The previous prime is 1648292257. The next prime is 1648292311. The reversal of 1648292266 is 6622928461.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1419405625 + 228886641 = 37675^2 + 15129^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 412073065 + ... + 412073068.

Almost surely, 2^1648292266 is an apocalyptic number.

1648292266 is a deficient number, since it is larger than the sum of its proper divisors (824146136).

1648292266 is an equidigital number, since it uses as much as digits as its factorization.

1648292266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824146135.

The product of its digits is 497664, while the sum is 46.

The square root of 1648292266 is about 40599.1658288689. The cubic root of 1648292266 is about 1181.2579388771.

The spelling of 1648292266 in words is "one billion, six hundred forty-eight million, two hundred ninety-two thousand, two hundred sixty-six".