65785536 has 84 divisors (see below), whose sum is σ = 189904624. Its totient is φ = 21772800.

The previous prime is 65785523. The next prime is 65785537. The reversal of 65785536 is 63558756.

It is a junction number, because it is equal to n+sod(n) for n = 65785491 and 65785500.

It is not an unprimeable number, because it can be changed into a prime (65785537) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103941 + ... + 104571.

Almost surely, 2^65785536 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 65785536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94952312).

65785536 is an abundant number, since it is smaller than the sum of its proper divisors (124119088).

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

65785536 is a wasteful number, since it uses less digits than its factorization.

65785536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830 (or 817 counting only the distinct ones).

The product of its digits is 756000, while the sum is 45.

The square root of 65785536 is about 8110.8283177491. The cubic root of 65785536 is about 403.6857995541.

The spelling of 65785536 in words is "sixty-five million, seven hundred eighty-five thousand, five hundred thirty-six".