1663343504 has 10 divisors (see below), whose sum is σ = 3222728070. Its totient is φ = 831671744.

The previous prime is 1663343503. The next prime is 1663343519. The reversal of 1663343504 is 4053433661.

It can be written as a sum of positive squares in only one way, i.e., 1652585104 + 10758400 = 40652^2 + 3280^2 .

It is a super-2 number, since 2×1663343504² = 5533423224597996032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1663343503) 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 as a sum of consecutive naturals, namely, 51979469 + ... + 51979500.

It is an arithmetic number, because the mean of its divisors is an integer number (322272807).

Almost surely, 2^1663343504 is an apocalyptic number.

It is an amenable number.

1663343504 is a deficient number, since it is larger than the sum of its proper divisors (1559384566).

1663343504 is a wasteful number, since it uses less digits than its factorization.

1663343504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103958977 (or 103958971 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 35.

The square root of 1663343504 is about 40784.1084737671. The cubic root of 1663343504 is about 1184.8425681768.

The spelling of 1663343504 in words is "one billion, six hundred sixty-three million, three hundred forty-three thousand, five hundred four".