65768536 has 32 divisors (see below), whose sum is σ = 128222640. Its totient is φ = 31598208.

The previous prime is 65768533. The next prime is 65768537. The reversal of 65768536 is 63586756.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65768531) 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, 23230 + ... + 25906.

Almost surely, 2^65768536 is an apocalyptic number.

It is an amenable number.

65768536 is a deficient number, since it is larger than the sum of its proper divisors (62454104).

65768536 is a wasteful number, since it uses less digits than its factorization.

65768536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2803 (or 2799 counting only the distinct ones).

The product of its digits is 907200, while the sum is 46.

The square root of 65768536 is about 8109.7802682933. The cubic root of 65768536 is about 403.6510236736.

It can be divided in two parts, 657685 and 36, that added together give a square (657721 = 811²).

The spelling of 65768536 in words is "sixty-five million, seven hundred sixty-eight thousand, five hundred thirty-six".