40660166 has 4 divisors (see below), whose sum is σ = 60990252. Its totient is φ = 20330082.

The previous prime is 40660129. The next prime is 40660181. The reversal of 40660166 is 66106604.

40660166 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10165040 + ... + 10165043.

It is an arithmetic number, because the mean of its divisors is an integer number (15247563).

Almost surely, 2^40660166 is an apocalyptic number.

40660166 is a deficient number, since it is larger than the sum of its proper divisors (20330086).

40660166 is a wasteful number, since it uses less digits than its factorization.

40660166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20330085.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 40660166 is about 6376.5324432641. The cubic root of 40660166 is about 343.8663792831.

The spelling of 40660166 in words is "forty million, six hundred sixty thousand, one hundred sixty-six".