663211452 has 24 divisors (see below), whose sum is σ = 1548799056. Its totient is φ = 220883968.

The previous prime is 663211447. The next prime is 663211457. The reversal of 663211452 is 254112366.

It is an interprime number because it is at equal distance from previous prime (663211447) and next prime (663211457).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663211457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8103 + ... + 37310.

It is an arithmetic number, because the mean of its divisors is an integer number (64533294).

Almost surely, 2^663211452 is an apocalyptic number.

It is an amenable number.

663211452 is an abundant number, since it is smaller than the sum of its proper divisors (885587604).

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

663211452 is a wasteful number, since it uses less digits than its factorization.

663211452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46637 (or 46635 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 663211452 is about 25752.8921094311. The cubic root of 663211452 is about 872.0686458738.

The spelling of 663211452 in words is "six hundred sixty-three million, two hundred eleven thousand, four hundred fifty-two".