663714460 has 96 divisors (see below), whose sum is σ = 1516838400. Its totient is φ = 243129600.

The previous prime is 663714451. The next prime is 663714463. The reversal of 663714460 is 64417366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663714463) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2467206 + ... + 2467474.

It is an arithmetic number, because the mean of its divisors is an integer number (15800400).

Almost surely, 2^663714460 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 663714460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (758419200).

663714460 is an abundant number, since it is smaller than the sum of its proper divisors (853123940).

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

663714460 is a wasteful number, since it uses less digits than its factorization.

663714460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491 (or 489 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 663714460 is about 25762.6563071435. The cubic root of 663714460 is about 872.2890615758.

The spelling of 663714460 in words is "six hundred sixty-three million, seven hundred fourteen thousand, four hundred sixty".