65387568 has 40 divisors (see below), whose sum is σ = 169221808. Its totient is φ = 21756672.

The previous prime is 65387561. The next prime is 65387611. The reversal of 65387568 is 86578356.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (65387561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40146 + ... + 41742.

Almost surely, 2^65387568 is an apocalyptic number.

It is an amenable number.

65387568 is an abundant number, since it is smaller than the sum of its proper divisors (103834240).

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

65387568 is a wasteful number, since it uses less digits than its factorization.

65387568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2461 (or 2455 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 48.

The square root of 65387568 is about 8086.2579726348. The cubic root of 65387568 is about 402.8701233898.

The spelling of 65387568 in words is "sixty-five million, three hundred eighty-seven thousand, five hundred sixty-eight".