663334144 has 36 divisors (see below), whose sum is σ = 1444453920. Its totient is φ = 301514240.

The previous prime is 663334123. The next prime is 663334151. The reversal of 663334144 is 441433366.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114964 + ... + 120595.

It is an arithmetic number, because the mean of its divisors is an integer number (40123720).

Almost surely, 2^663334144 is an apocalyptic number.

663334144 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

663334144 is an abundant number, since it is smaller than the sum of its proper divisors (781119776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

663334144 is a wasteful number, since it uses less digits than its factorization.

663334144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235586 (or 235572 counting only the distinct ones).

The product of its digits is 62208, while the sum is 34.

The square root of 663334144 is about 25755.2741006575. The cubic root of 663334144 is about 872.1224191959.

The spelling of 663334144 in words is "six hundred sixty-three million, three hundred thirty-four thousand, one hundred forty-four".