1663034323 has 4 divisors (see below), whose sum is σ = 1698418080. Its totient is φ = 1627650568.

The previous prime is 1663034291. The next prime is 1663034381. The reversal of 1663034323 is 3234303661.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3234303661 = 181 ⋅17869081.

It is a cyclic number.

It is not a de Polignac number, because 1663034323 - 2⁵ = 1663034291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1663034123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17691808 + ... + 17691901.

It is an arithmetic number, because the mean of its divisors is an integer number (424604520).

Almost surely, 2^1663034323 is an apocalyptic number.

1663034323 is a deficient number, since it is larger than the sum of its proper divisors (35383757).

1663034323 is an equidigital number, since it uses as much as digits as its factorization.

1663034323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35383756.

The product of its (nonzero) digits is 23328, while the sum is 31.

The square root of 1663034323 is about 40780.3178383887. The cubic root of 1663034323 is about 1184.7691510886.

Adding to 1663034323 its reverse (3234303661), we get a palindrome (4897337984).

The spelling of 1663034323 in words is "one billion, six hundred sixty-three million, thirty-four thousand, three hundred twenty-three".