6660074 has 8 divisors (see below), whose sum is σ = 10260228. Its totient is φ = 3240000.

The previous prime is 6660061. The next prime is 6660091. The reversal of 6660074 is 4700666.

It can be written as a sum of positive squares in 2 ways, for example, as 4431025 + 2229049 = 2105^2 + 1493^2 .

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

It is an Ulam 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, 44927 + ... + 45074.

Almost surely, 2^6660074 is an apocalyptic number.

6660074 is a deficient number, since it is larger than the sum of its proper divisors (3600154).

6660074 is a wasteful number, since it uses less digits than its factorization.

6660074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90040.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 6660074 is about 2580.7119172817. The cubic root of 6660074 is about 188.1451459461.

It can be divided in two parts, 66600 and 74, that multiplied together give a square (4928400 = 2220²).

The spelling of 6660074 in words is "six million, six hundred sixty thousand, seventy-four".