2206061605556 has 6 divisors (see below), whose sum is σ = 3860607809730. Its totient is φ = 1103030802776.

The previous prime is 2206061605523. The next prime is 2206061605577. The reversal of 2206061605556 is 6555061606022.

It can be written as a sum of positive squares in only one way, i.e., 2205124021156 + 937584400 = 1484966^2 + 30620^2 .

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, 275757700691 + ... + 275757700698.

It is an arithmetic number, because the mean of its divisors is an integer number (643434634955).

Almost surely, 2^{2206061605556} is an apocalyptic number.

It is an amenable number.

2206061605556 is a deficient number, since it is larger than the sum of its proper divisors (1654546204174).

2206061605556 is a wasteful number, since it uses less digits than its factorization.

2206061605556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551515401393 (or 551515401391 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 44.

The spelling of 2206061605556 in words is "two trillion, two hundred six billion, sixty-one million, six hundred five thousand, five hundred fifty-six".