65302668 has 72 divisors (see below), whose sum is σ = 170797536. Its totient is φ = 21024000.

The previous prime is 65302667. The next prime is 65302673. The reversal of 65302668 is 86620356.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (65302667) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 222730 + ... + 223022.

It is an arithmetic number, because the mean of its divisors is an integer number (2372188).

Almost surely, 2^65302668 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 65302668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85398768).

65302668 is an abundant number, since it is smaller than the sum of its proper divisors (105494868).

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

65302668 is a wasteful number, since it uses less digits than its factorization.

65302668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495 (or 490 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 65302668 is about 8081.0066204651. The cubic root of 65302668 is about 402.6956840752.

The spelling of 65302668 in words is "sixty-five million, three hundred two thousand, six hundred sixty-eight".