6500165140 has 24 divisors (see below), whose sum is σ = 15600396672. Its totient is φ = 2228628000.

The previous prime is 6500165129. The next prime is 6500165141. The reversal of 6500165140 is 415610056.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 6500165099 and 6500165108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6500165141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23214736 + ... + 23215015.

It is an arithmetic number, because the mean of its divisors is an integer number (650016528).

Almost surely, 2^6500165140 is an apocalyptic number.

It is an amenable number.

6500165140 is an abundant number, since it is smaller than the sum of its proper divisors (9100231532).

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

6500165140 is a wasteful number, since it uses less digits than its factorization.

6500165140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46429767 (or 46429765 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 6500165140 is about 80623.6016312841. The cubic root of 6500165140 is about 1866.2713830669.

Adding to 6500165140 its reverse (415610056), we get a palindrome (6915775196).

The spelling of 6500165140 in words is "six billion, five hundred million, one hundred sixty-five thousand, one hundred forty".