6665532 has 12 divisors (see below), whose sum is σ = 15552936. Its totient is φ = 2221840.

The previous prime is 6665497. The next prime is 6665537. The reversal of 6665532 is 2355666.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 6665493 and 6665502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6665537) 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 3 ways as a sum of consecutive naturals, for example, 277719 + ... + 277742.

It is an arithmetic number, because the mean of its divisors is an integer number (1296078).

Almost surely, 2^6665532 is an apocalyptic number.

It is an amenable number.

6665532 is an abundant number, since it is smaller than the sum of its proper divisors (8887404).

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

6665532 is a wasteful number, since it uses less digits than its factorization.

6665532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555468 (or 555466 counting only the distinct ones).

The product of its digits is 32400, while the sum is 33.

The square root of 6665532 is about 2581.7691608662. The cubic root of 6665532 is about 188.1965275482.

The spelling of 6665532 in words is "six million, six hundred sixty-five thousand, five hundred thirty-two".