6665042 has 8 divisors (see below), whose sum is σ = 10241532. Its totient is φ = 3251200.

The previous prime is 6665017. The next prime is 6665047. The reversal of 6665042 is 2405666.

It can be written as a sum of positive squares in 2 ways, for example, as 6661561 + 3481 = 2581^2 + 59^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 6664996 and 6665014.

It is not an unprimeable number, because it can be changed into a prime (6665047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40559 + ... + 40722.

Almost surely, 2^6665042 is an apocalyptic number.

6665042 is a deficient number, since it is larger than the sum of its proper divisors (3576490).

6665042 is a wasteful number, since it uses less digits than its factorization.

6665042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81324.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 6665042 is about 2581.6742629542. The cubic root of 6665042 is about 188.1919158354.

The spelling of 6665042 in words is "six million, six hundred sixty-five thousand, forty-two".