65213316 has 72 divisors (see below), whose sum is σ = 196691040. Its totient is φ = 18630864.

The previous prime is 65213297. The next prime is 65213341. The reversal of 65213316 is 61331256.

65213316 is a `hidden beast` number, since 652 + 1 + 3 + 3 + 1 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 65213316.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 870 + ... + 11453.

It is an arithmetic number, because the mean of its divisors is an integer number (2731820).

Almost surely, 2^65213316 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 65213316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98345520).

65213316 is an abundant number, since it is smaller than the sum of its proper divisors (131477724).

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

65213316 is a wasteful number, since it uses less digits than its factorization.

65213316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12350 (or 12335 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 65213316 is about 8075.4762088684. The cubic root of 65213316 is about 402.5119341137.

The spelling of 65213316 in words is "sixty-five million, two hundred thirteen thousand, three hundred sixteen".