1663323496 has 16 divisors (see below), whose sum is σ = 3129380100. Its totient is φ = 828822144.

The previous prime is 1663323491. The next prime is 1663323509. The reversal of 1663323496 is 6943233661.

It can be written as a sum of positive squares in 2 ways, for example, as 1304220996 + 359102500 = 36114^2 + 18950^2 .

It is not an unprimeable number, because it can be changed into a prime (1663323491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352461 + ... + 357148.

Almost surely, 2^1663323496 is an apocalyptic number.

It is an amenable number.

1663323496 is a deficient number, since it is larger than the sum of its proper divisors (1466056604).

1663323496 is a wasteful number, since it uses less digits than its factorization.

1663323496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709908 (or 709904 counting only the distinct ones).

The product of its digits is 419904, while the sum is 43.

The square root of 1663323496 is about 40783.8631814104. The cubic root of 1663323496 is about 1184.8378174192.

The spelling of 1663323496 in words is "one billion, six hundred sixty-three million, three hundred twenty-three thousand, four hundred ninety-six".