3666158 has 4 divisors (see below), whose sum is σ = 5499240. Its totient is φ = 1833078.

The previous prime is 3666149. The next prime is 3666163. The reversal of 3666158 is 8516663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8516663 = 71 ⋅119953.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 916538 + ... + 916541.

It is an arithmetic number, because the mean of its divisors is an integer number (1374810).

Almost surely, 2^3666158 is an apocalyptic number.

3666158 is a deficient number, since it is larger than the sum of its proper divisors (1833082).

3666158 is a wasteful number, since it uses less digits than its factorization.

3666158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1833081.

The product of its digits is 25920, while the sum is 35.

The square root of 3666158 is about 1914.7213896544. The cubic root of 3666158 is about 154.1950359610.

The spelling of 3666158 in words is "three million, six hundred sixty-six thousand, one hundred fifty-eight".