6501165 has 48 divisors (see below), whose sum is σ = 12011328. Its totient is φ = 2976000.

The previous prime is 6501149. The next prime is 6501179. The reversal of 6501165 is 5611056.

It is not a de Polignac number, because 6501165 - 2⁴ = 6501149 is a prime.

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 158545 + ... + 158585.

It is an arithmetic number, because the mean of its divisors is an integer number (250236).

Almost surely, 2^6501165 is an apocalyptic number.

It is an amenable number.

6501165 is a deficient number, since it is larger than the sum of its proper divisors (5510163).

6501165 is a wasteful number, since it uses less digits than its factorization.

6501165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 6501165 is about 2549.7382218573. The cubic root of 6501165 is about 186.6367068556.

It can be divided in two parts, 6501 and 165, that added together give a palindrome (6666).

The spelling of 6501165 in words is "six million, five hundred one thousand, one hundred sixty-five".