65201312 has 48 divisors (see below), whose sum is σ = 147420000. Its totient is φ = 28074240.

The previous prime is 65201299. The next prime is 65201329. The reversal of 65201312 is 21310256.

It is a super-2 number, since 2×65201312² = 8502422173042688, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1814 + ... + 11562.

It is an arithmetic number, because the mean of its divisors is an integer number (3071250).

Almost surely, 2^65201312 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 65201312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73710000).

65201312 is an abundant number, since it is smaller than the sum of its proper divisors (82218688).

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

65201312 is a wasteful number, since it uses less digits than its factorization.

65201312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9789 (or 9781 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 65201312 is about 8074.7329367602. The cubic root of 65201312 is about 402.4872354271.

Adding to 65201312 its reverse (21310256), we get a palindrome (86511568).

The spelling of 65201312 in words is "sixty-five million, two hundred one thousand, three hundred twelve".