65780336 has 10 divisors (see below), whose sum is σ = 127449432. Its totient is φ = 32890160.

The previous prime is 65780333. The next prime is 65780347. The reversal of 65780336 is 63308756.

It is a self number, because there is not a number n which added to its sum of digits gives 65780336.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65780333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2055620 + ... + 2055651.

Almost surely, 2^65780336 is an apocalyptic number.

It is an amenable number.

65780336 is a deficient number, since it is larger than the sum of its proper divisors (61669096).

65780336 is a wasteful number, since it uses less digits than its factorization.

65780336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4111279 (or 4111273 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 65780336 is about 8110.5077522927. The cubic root of 65780336 is about 403.6751628620.

The spelling of 65780336 in words is "sixty-five million, seven hundred eighty thousand, three hundred thirty-six".