65663304 has 64 divisors (see below), whose sum is σ = 192205440. Its totient is φ = 18301440.

The previous prime is 65663291. The next prime is 65663347. The reversal of 65663304 is 40336656.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2122 + ... + 11654.

It is an arithmetic number, because the mean of its divisors is an integer number (3003210).

Almost surely, 2^65663304 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 65663304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96102720).

65663304 is an abundant number, since it is smaller than the sum of its proper divisors (126542136).

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

65663304 is a wasteful number, since it uses less digits than its factorization.

65663304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9590 (or 9586 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 33.

The square root of 65663304 is about 8103.2897023369. The cubic root of 65663304 is about 403.4356234119.

It can be divided in two parts, 6566 and 3304, that added together give a triangular number (9870 = T₁₄₀).

The spelling of 65663304 in words is "sixty-five million, six hundred sixty-three thousand, three hundred four".