663126880 has 48 divisors (see below), whose sum is σ = 1687153104. Its totient is φ = 244846080.

The previous prime is 663126857. The next prime is 663126899. The reversal of 663126880 is 88621366.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157326 + ... + 161485.

It is an arithmetic number, because the mean of its divisors is an integer number (35149023).

Almost surely, 2^663126880 is an apocalyptic number.

It is an amenable number.

663126880 is an abundant number, since it is smaller than the sum of its proper divisors (1024026224).

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

663126880 is a wasteful number, since it uses less digits than its factorization.

663126880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318839 (or 318831 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 663126880 is about 25751.2500667443. The cubic root of 663126880 is about 872.0315758843.

The spelling of 663126880 in words is "six hundred sixty-three million, one hundred twenty-six thousand, eight hundred eighty".