2206943810361 has 20 divisors (see below), whose sum is σ = 3296939582244. Its totient is φ = 1471230280800.

The previous prime is 2206943810311. The next prime is 2206943810371. The reversal of 2206943810361 is 1630183496022.

2206943810361 is a `hidden beast` number, since 2 + 206 + 9 + 4 + 3 + 81 + 0 + 361 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2134722622761 + 72221187600 = 1461069^2 + 268740^2 .

It is not a de Polignac number, because 2206943810361 - 2⁷ = 2206943810233 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2206943810311) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1255831 + ... + 2447651.

Almost surely, 2^{2206943810361} is an apocalyptic number.

It is an amenable number.

2206943810361 is a deficient number, since it is larger than the sum of its proper divisors (1089995771883).

2206943810361 is a wasteful number, since it uses less digits than its factorization.

2206943810361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214694 (or 1214685 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 2206943810361 in words is "two trillion, two hundred six billion, nine hundred forty-three million, eight hundred ten thousand, three hundred sixty-one".