663241528 has 64 divisors (see below), whose sum is σ = 1313280000. Its totient is φ = 313632000.

The previous prime is 663241511. The next prime is 663241529. The reversal of 663241528 is 825142366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663241529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3332773 + ... + 3332971.

It is an arithmetic number, because the mean of its divisors is an integer number (20520000).

Almost surely, 2^663241528 is an apocalyptic number.

It is an amenable number.

663241528 is a deficient number, since it is larger than the sum of its proper divisors (650038472).

663241528 is a wasteful number, since it uses less digits than its factorization.

663241528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476 (or 472 counting only the distinct ones).

The product of its digits is 69120, while the sum is 37.

The square root of 663241528 is about 25753.4760372265. The cubic root of 663241528 is about 872.0818281654.

The spelling of 663241528 in words is "six hundred sixty-three million, two hundred forty-one thousand, five hundred twenty-eight".