6686156 has 12 divisors (see below), whose sum is σ = 11973192. Its totient is φ = 3265248.

The previous prime is 6686107. The next prime is 6686167. The reversal of 6686156 is 6516866.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

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, 19265 + ... + 19608.

It is an arithmetic number, because the mean of its divisors is an integer number (997766).

Almost surely, 2^6686156 is an apocalyptic number.

It is an amenable number.

6686156 is a deficient number, since it is larger than the sum of its proper divisors (5287036).

6686156 is a wasteful number, since it uses less digits than its factorization.

6686156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38920 (or 38918 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 6686156 is about 2585.7602363715. The cubic root of 6686156 is about 188.3904289956.

It can be divided in two parts, 66861 and 56, that multiplied together give a triangular number (3744216 = T₂₇₃₆).

The spelling of 6686156 in words is "six million, six hundred eighty-six thousand, one hundred fifty-six".