65381368 has 48 divisors (see below), whose sum is σ = 136437480. Its totient is φ = 29337984.

The previous prime is 65381357. The next prime is 65381377. The reversal of 65381368 is 86318356.

It is a self number, because there is not a number n which added to its sum of digits gives 65381368.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49371 + ... + 50677.

Almost surely, 2^65381368 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 65381368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68218740).

65381368 is an abundant number, since it is smaller than the sum of its proper divisors (71056112).

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

65381368 is a wasteful number, since it uses less digits than its factorization.

65381368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376 (or 1359 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The square root of 65381368 is about 8085.8745970983. The cubic root of 65381368 is about 402.8573897067.

The spelling of 65381368 in words is "sixty-five million, three hundred eighty-one thousand, three hundred sixty-eight".