1663003912 has 8 divisors (see below), whose sum is σ = 3118132350. Its totient is φ = 831501952.

The previous prime is 1663003889. The next prime is 1663003939. The reversal of 1663003912 is 2193003661.

It can be written as a sum of positive squares in only one way, i.e., 849955716 + 813048196 = 29154^2 + 28514^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1663003912² = 5531164022654607488, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103937737 + ... + 103937752.

Almost surely, 2^1663003912 is an apocalyptic number.

It is an amenable number.

1663003912 is a deficient number, since it is larger than the sum of its proper divisors (1455128438).

1663003912 is a wasteful number, since it uses less digits than its factorization.

1663003912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207875495 (or 207875491 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 1663003912 is about 40779.9449729889. The cubic root of 1663003912 is about 1184.7619293025.

The spelling of 1663003912 in words is "one billion, six hundred sixty-three million, three thousand, nine hundred twelve".