166040266 has 16 divisors (see below), whose sum is σ = 297016704. Its totient is φ = 68066064.

The previous prime is 166040261. The next prime is 166040267. The reversal of 166040266 is 662040661.

166040266 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (166040261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257505 + ... + 258148.

It is an arithmetic number, because the mean of its divisors is an integer number (18563544).

Almost surely, 2^166040266 is an apocalyptic number.

166040266 is a deficient number, since it is larger than the sum of its proper divisors (130976438).

166040266 is a wasteful number, since it uses less digits than its factorization.

166040266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515685.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 166040266 is about 12885.6612558301. The cubic root of 166040266 is about 549.6308994625.

The spelling of 166040266 in words is "one hundred sixty-six million, forty thousand, two hundred sixty-six".