663215452 has 12 divisors (see below), whose sum is σ = 1160887840. Its totient is φ = 331533216.

The previous prime is 663215393. The next prime is 663215453. The reversal of 663215452 is 254512366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663215453) 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, 4624 + ... + 36712.

Almost surely, 2^663215452 is an apocalyptic number.

It is an amenable number.

663215452 is a deficient number, since it is larger than the sum of its proper divisors (497672388).

663215452 is a wasteful number, since it uses less digits than its factorization.

663215452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37260 (or 37258 counting only the distinct ones).

The product of its digits is 43200, while the sum is 34.

The square root of 663215452 is about 25752.9697704944. The cubic root of 663215452 is about 872.0703990943.

The spelling of 663215452 in words is "six hundred sixty-three million, two hundred fifteen thousand, four hundred fifty-two".