206520656040106 has 8 divisors (see below), whose sum is σ = 313513285073184. Its totient is φ = 102016227682380.

The previous prime is 206520656039953. The next prime is 206520656040109. The reversal of 206520656040106 is 601040656025602.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (206520656040109) 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, 622050168630 + ... + 622050168961.

It is an arithmetic number, because the mean of its divisors is an integer number (39189160634148).

Almost surely, 2^{206520656040106} is an apocalyptic number.

206520656040106 is a deficient number, since it is larger than the sum of its proper divisors (106992629033078).

206520656040106 is a wasteful number, since it uses less digits than its factorization.

206520656040106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244100337676.

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 206520656040106 in words is "two hundred six trillion, five hundred twenty billion, six hundred fifty-six million, forty thousand, one hundred six".