65218068 has 48 divisors (see below), whose sum is σ = 171626560. Its totient is φ = 21412512.

The previous prime is 65218039. The next prime is 65218073. The reversal of 65218068 is 86081256.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent 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, 2730 + ... + 11742.

Almost surely, 2^65218068 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 65218068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85813280).

65218068 is an abundant number, since it is smaller than the sum of its proper divisors (106408492).

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

65218068 is a wasteful number, since it uses less digits than its factorization.

65218068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9093 (or 9085 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 65218068 is about 8075.7704276434. The cubic root of 65218068 is about 402.5217106970.

The spelling of 65218068 in words is "sixty-five million, two hundred eighteen thousand, sixty-eight".