2206606570549 has 4 divisors (see below), whose sum is σ = 2220144034336. Its totient is φ = 2193069106764.

The previous prime is 2206606570481. The next prime is 2206606570559. The reversal of 2206606570549 is 9450756066022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2206606570549 is a prime.

It is a super-2 number, since 2×2206606570549² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2206606570496 and 2206606570505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2206606570559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6768731649 + ... + 6768731974.

It is an arithmetic number, because the mean of its divisors is an integer number (555036008584).

Almost surely, 2^{2206606570549} is an apocalyptic number.

It is an amenable number.

2206606570549 is a deficient number, since it is larger than the sum of its proper divisors (13537463787).

2206606570549 is a wasteful number, since it uses less digits than its factorization.

2206606570549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13537463786.

The product of its (nonzero) digits is 5443200, while the sum is 52.

The spelling of 2206606570549 in words is "two trillion, two hundred six billion, six hundred six million, five hundred seventy thousand, five hundred forty-nine".