65785782232 has 64 divisors (see below), whose sum is σ = 132637176000. Its totient is φ = 30479769600.

The previous prime is 65785782211. The next prime is 65785782239. The reversal of 65785782232 is 23228758756.

It is a super-2 number, since 2×65785782232² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65785782239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2306394 + ... + 2334742.

It is an arithmetic number, because the mean of its divisors is an integer number (2072455875).

Almost surely, 2^65785782232 is an apocalyptic number.

It is an amenable number.

65785782232 is an abundant number, since it is smaller than the sum of its proper divisors (66851393768).

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

65785782232 is a wasteful number, since it uses less digits than its factorization.

65785782232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28636 (or 28632 counting only the distinct ones).

The product of its digits is 11289600, while the sum is 55.

The spelling of 65785782232 in words is "sixty-five billion, seven hundred eighty-five million, seven hundred eighty-two thousand, two hundred thirty-two".