766166 has 4 divisors (see below), whose sum is σ = 1149252. Its totient is φ = 383082.

The previous prime is 766163. The next prime is 766169. The reversal of 766166 is 661667.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 661667 = 61 ⋅10847.

It is an interprime number because it is at equal distance from previous prime (766163) and next prime (766169).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 766166.

It is not an unprimeable number, because it can be changed into a prime (766163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191540 + ... + 191543.

It is an arithmetic number, because the mean of its divisors is an integer number (287313).

2⁷⁶⁶¹⁶⁶ is an apocalyptic number.

766166 is a deficient number, since it is larger than the sum of its proper divisors (383086).

766166 is a wasteful number, since it uses less digits than its factorization.

766166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383085.

The product of its digits is 9072, while the sum is 32.

The square root of 766166 is about 875.3090882654. The cubic root of 766166 is about 91.5041852625.

The spelling of 766166 in words is "seven hundred sixty-six thousand, one hundred sixty-six".