6665536 has 14 divisors (see below), whose sum is σ = 13227050. Its totient is φ = 3332736.

The previous prime is 6665497. The next prime is 6665537. The reversal of 6665536 is 6355666.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6471936 + 193600 = 2544^2 + 440^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6665495 and 6665504.

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 polite number, since it can be written as a sum of consecutive naturals, namely, 52011 + ... + 52138.

Almost surely, 2^6665536 is an apocalyptic number.

It is an amenable number.

6665536 is a deficient number, since it is larger than the sum of its proper divisors (6561514).

6665536 is a wasteful number, since it uses less digits than its factorization.

6665536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104161 (or 104151 counting only the distinct ones).

The product of its digits is 97200, while the sum is 37.

The square root of 6665536 is about 2581.7699355287. The cubic root of 6665536 is about 188.1965651939.

The spelling of 6665536 in words is "six million, six hundred sixty-five thousand, five hundred thirty-six".