1664016003 has 24 divisors (see below), whose sum is σ = 2589842528. Its totient is φ = 1023466752.

The previous prime is 1664015993. The next prime is 1664016007. The reversal of 1664016003 is 3006104661.

1664016003 is a `hidden beast` number, since 1 + 6 + 640 + 16 + 0 + 0 + 3 = 666.

It is not a de Polignac number, because 1664016003 - 2⁶ = 1664015939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1664016007) by changing a digit.

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 in 23 ways as a sum of consecutive naturals, for example, 430626 + ... + 434472.

Almost surely, 2^1664016003 is an apocalyptic number.

1664016003 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1664016003 is a deficient number, since it is larger than the sum of its proper divisors (925826525).

1664016003 is a wasteful number, since it uses less digits than its factorization.

1664016003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7563 (or 7560 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 1664016003 is about 40792.3522611776. The cubic root of 1664016003 is about 1185.0022261348.

The spelling of 1664016003 in words is "one billion, six hundred sixty-four million, sixteen thousand, three".