663357044 has 24 divisors (see below), whose sum is σ = 1357570368. Its totient is φ = 277683840.

The previous prime is 663357031. The next prime is 663357077. The reversal of 663357044 is 440753366.

It is a junction number, because it is equal to n+sod(n) for n = 663356989 and 663357007.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274277 + ... + 276684.

It is an arithmetic number, because the mean of its divisors is an integer number (56565432).

Almost surely, 2^663357044 is an apocalyptic number.

It is an amenable number.

663357044 is an abundant number, since it is smaller than the sum of its proper divisors (694213324).

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

663357044 is a wasteful number, since it uses less digits than its factorization.

663357044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551015 (or 551013 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 38.

The square root of 663357044 is about 25755.7186659584. The cubic root of 663357044 is about 872.1324550498.

The spelling of 663357044 in words is "six hundred sixty-three million, three hundred fifty-seven thousand, forty-four".