2106606566 has 8 divisors (see below), whose sum is σ = 3197981304. Its totient is φ = 1040612800.

The previous prime is 2106606559. The next prime is 2106606571. The reversal of 2106606566 is 6656066012.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6345035 + ... + 6345366.

It is an arithmetic number, because the mean of its divisors is an integer number (399747663).

Almost surely, 2^2106606566 is an apocalyptic number.

2106606566 is a deficient number, since it is larger than the sum of its proper divisors (1091374738).

2106606566 is a wasteful number, since it uses less digits than its factorization.

2106606566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12690486.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 2106606566 is about 45897.7838898568. The cubic root of 2106606566 is about 1281.9206529762.

The spelling of 2106606566 in words is "two billion, one hundred six million, six hundred six thousand, five hundred sixty-six".