2206866646 has 4 divisors (see below), whose sum is σ = 3310299972. Its totient is φ = 1103433322.

The previous prime is 2206866637. The next prime is 2206866653. The reversal of 2206866646 is 6466686022.

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

It is a junction number, because it is equal to n+sod(n) for n = 2206866596 and 2206866605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551716660 + ... + 551716663.

It is an arithmetic number, because the mean of its divisors is an integer number (827574993).

Almost surely, 2^2206866646 is an apocalyptic number.

2206866646 is a deficient number, since it is larger than the sum of its proper divisors (1103433326).

2206866646 is a wasteful number, since it uses less digits than its factorization.

2206866646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103433325.

The product of its (nonzero) digits is 995328, while the sum is 46.

The square root of 2206866646 is about 46977.2992625161. The cubic root of 2206866646 is about 1301.9431780066.

The spelling of 2206866646 in words is "two billion, two hundred six million, eight hundred sixty-six thousand, six hundred forty-six".