102666206 has 16 divisors (see below), whose sum is σ = 159589440. Its totient is φ = 49476000.

The previous prime is 102666199. The next prime is 102666209. The reversal of 102666206 is 602666201.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102666209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42380 + ... + 44736.

It is an arithmetic number, because the mean of its divisors is an integer number (9974340).

Almost surely, 2^102666206 is an apocalyptic number.

102666206 is a deficient number, since it is larger than the sum of its proper divisors (56923234).

102666206 is a wasteful number, since it uses less digits than its factorization.

102666206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3139.

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

The square root of 102666206 is about 10132.4333701239. The cubic root of 102666206 is about 468.2478993219.

The spelling of 102666206 in words is "one hundred two million, six hundred sixty-six thousand, two hundred six".