2100106666 has 8 divisors (see below), whose sum is σ = 3600182880. Its totient is φ = 900045708.

The previous prime is 2100106661. The next prime is 2100106667. The reversal of 2100106666 is 6666010012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2100106661) 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 3 ways as a sum of consecutive naturals, for example, 75003796 + ... + 75003823.

It is an arithmetic number, because the mean of its divisors is an integer number (450022860).

Almost surely, 2^2100106666 is an apocalyptic number.

2100106666 is a deficient number, since it is larger than the sum of its proper divisors (1500076214).

2100106666 is a wasteful number, since it uses less digits than its factorization.

2100106666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150007628.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 2100106666 is about 45826.9207562542. The cubic root of 2100106666 is about 1280.6008462485.

Adding to 2100106666 its reverse (6666010012), we get a palindrome (8766116678).

The spelling of 2100106666 in words is "two billion, one hundred million, one hundred six thousand, six hundred sixty-six".