1664503196 has 12 divisors (see below), whose sum is σ = 2919202440. Its totient is φ = 830445360.

The previous prime is 1664503193. The next prime is 1664503207. The reversal of 1664503196 is 6913054661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1664503193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 449486 + ... + 453173.

It is an arithmetic number, because the mean of its divisors is an integer number (243266870).

Almost surely, 2^1664503196 is an apocalyptic number.

It is an amenable number.

1664503196 is a deficient number, since it is larger than the sum of its proper divisors (1254699244).

1664503196 is a wasteful number, since it uses less digits than its factorization.

1664503196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903124 (or 903122 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 1664503196 is about 40798.3234459457. The cubic root of 1664503196 is about 1185.1178637357.

The spelling of 1664503196 in words is "one billion, six hundred sixty-four million, five hundred three thousand, one hundred ninety-six".