6665356 has 6 divisors (see below), whose sum is σ = 11664380. Its totient is φ = 3332676.

The previous prime is 6665353. The next prime is 6665359. The reversal of 6665356 is 6535666.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6665353) and next prime (6665359).

It is not an unprimeable number, because it can be changed into a prime (6665353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 833166 + ... + 833173.

Almost surely, 2^6665356 is an apocalyptic number.

It is an amenable number.

6665356 is a deficient number, since it is larger than the sum of its proper divisors (4999024).

6665356 is a wasteful number, since it uses less digits than its factorization.

6665356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666343 (or 1666341 counting only the distinct ones).

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

The square root of 6665356 is about 2581.7350754870. The cubic root of 6665356 is about 188.1948711223.

It can be divided in two parts, 6665 and 356, that added together give a triangular number (7021 = T₁₁₈).

The spelling of 6665356 in words is "six million, six hundred sixty-five thousand, three hundred fifty-six".