6660142 has 8 divisors (see below), whose sum is σ = 10089432. Its totient is φ = 3297000.

The previous prime is 6660119. The next prime is 6660161. The reversal of 6660142 is 2410666.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16284 + ... + 16687.

It is an arithmetic number, because the mean of its divisors is an integer number (1261179).

Almost surely, 2^6660142 is an apocalyptic number.

6660142 is a deficient number, since it is larger than the sum of its proper divisors (3429290).

6660142 is a wasteful number, since it uses less digits than its factorization.

6660142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33074.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 6660142 is about 2580.7250919073. The cubic root of 6660142 is about 188.1457862707.

The spelling of 6660142 in words is "six million, six hundred sixty thousand, one hundred forty-two".