8206155442656 has 144 divisors (see below), whose sum is σ = 24763602165120. Its totient is φ = 2572108535040.

The previous prime is 8206155442649. The next prime is 8206155442687. The reversal of 8206155442656 is 6562445516028.

8206155442656 is a `hidden beast` number, since 8 + 2 + 0 + 61 + 554 + 4 + 26 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10107930 + ... + 10889561.

It is an arithmetic number, because the mean of its divisors is an integer number (171969459480).

Almost surely, 2^{8206155442656} is an apocalyptic number.

It is an amenable number.

8206155442656 is an abundant number, since it is smaller than the sum of its proper divisors (16557446722464).

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

8206155442656 is a wasteful number, since it uses less digits than its factorization.

8206155442656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20997589 (or 20997578 counting only the distinct ones).

The product of its (nonzero) digits is 13824000, while the sum is 54.

The spelling of 8206155442656 in words is "eight trillion, two hundred six billion, one hundred fifty-five million, four hundred forty-two thousand, six hundred fifty-six".