3556643544126 has 12 divisors (see below), whose sum is σ = 7706061012312. Its totient is φ = 1185547848036.

The previous prime is 3556643544109. The next prime is 3556643544161. The reversal of 3556643544126 is 6214453466553.

3556643544126 is a `hidden beast` number, since 3 + 5 + 56 + 6 + 43 + 544 + 1 + 2 + 6 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 98795653986 + ... + 98795654021.

It is an arithmetic number, because the mean of its divisors is an integer number (642171751026).

Almost surely, 2^{3556643544126} is an apocalyptic number.

3556643544126 is an abundant number, since it is smaller than the sum of its proper divisors (4149417468186).

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

3556643544126 is a wasteful number, since it uses less digits than its factorization.

3556643544126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197591308015 (or 197591308012 counting only the distinct ones).

The product of its digits is 31104000, while the sum is 54.

The spelling of 3556643544126 in words is "three trillion, five hundred fifty-six billion, six hundred forty-three million, five hundred forty-four thousand, one hundred twenty-six".