2206606406406 has 16 divisors (see below), whose sum is σ = 4413441318384. Its totient is φ = 735497384544.

The previous prime is 2206606406383. The next prime is 2206606406413. The reversal of 2206606406406 is 6046046066022.

It is a super-2 number, since 2×2206606406406² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9395401 + ... + 9627396.

It is an arithmetic number, because the mean of its divisors is an integer number (275840082399).

Almost surely, 2^{2206606406406} is an apocalyptic number.

2206606406406 is an abundant number, since it is smaller than the sum of its proper divisors (2206834911978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2206606406406 is a wasteful number, since it uses less digits than its factorization.

2206606406406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19042135.

The product of its (nonzero) digits is 497664, while the sum is 42.

The spelling of 2206606406406 in words is "two trillion, two hundred six billion, six hundred six million, four hundred six thousand, four hundred six".