65630208 has 156 divisors (see below), whose sum is σ = 205430280. Its totient is φ = 18579456.

The previous prime is 65630143. The next prime is 65630209. The reversal of 65630208 is 80203656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65630209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 602058 + ... + 602166.

Almost surely, 2^65630208 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 65630208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102715140).

65630208 is an abundant number, since it is smaller than the sum of its proper divisors (139800072).

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

65630208 is a wasteful number, since it uses less digits than its factorization.

65630208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150 (or 121 counting only the distinct ones).

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

The square root of 65630208 is about 8101.2473113713. The cubic root of 65630208 is about 403.3678313653.

The spelling of 65630208 in words is "sixty-five million, six hundred thirty thousand, two hundred eight".