6601365 has 32 divisors (see below), whose sum is σ = 11871360. Its totient is φ = 3480192.

The previous prime is 6601363. The next prime is 6601381. The reversal of 6601365 is 5631066.

It is not a de Polignac number, because 6601365 - 2¹ = 6601363 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6601363) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14217 + ... + 14673.

It is an arithmetic number, because the mean of its divisors is an integer number (370980).

Almost surely, 2^6601365 is an apocalyptic number.

It is an amenable number.

6601365 is a deficient number, since it is larger than the sum of its proper divisors (5269995).

6601365 is a wasteful number, since it uses less digits than its factorization.

6601365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578 (or 572 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 6601365 is about 2569.3121647632. The cubic root of 6601365 is about 187.5906761414.

Subtracting from 6601365 its reverse (5631066), we obtain a cube (970299 = 99³).

It can be divided in two parts, 660 and 1365, that added together give a square (2025 = 45²).

The spelling of 6601365 in words is "six million, six hundred one thousand, three hundred sixty-five".