663314736 has 80 divisors (see below), whose sum is σ = 1961731584. Its totient is φ = 189192192.

The previous prime is 663314683. The next prime is 663314737. The reversal of 663314736 is 637413366.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 663314694 and 663314703.

It is not an unprimeable number, because it can be changed into a prime (663314737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248320 + ... + 250976.

Almost surely, 2^663314736 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 663314736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (980865792).

663314736 is an abundant number, since it is smaller than the sum of its proper divisors (1298416848).

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

663314736 is a wasteful number, since it uses less digits than its factorization.

663314736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3418 (or 3412 counting only the distinct ones).

The product of its digits is 163296, while the sum is 39.

The square root of 663314736 is about 25754.8973207039. The cubic root of 663314736 is about 872.1139135194.

The spelling of 663314736 in words is "six hundred sixty-three million, three hundred fourteen thousand, seven hundred thirty-six".