206616342150066 has 32 divisors (see below), whose sum is σ = 413939678330880. Its totient is φ = 68754296086416.

The previous prime is 206616342150019. The next prime is 206616342150109. The reversal of 206616342150066 is 660051243616602.

It is a junction number, because it is equal to n+sod(n) for n = 206616342149997 and 206616342150024.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55969855 + ... + 59547101.

It is an arithmetic number, because the mean of its divisors is an integer number (12935614947840).

Almost surely, 2^{206616342150066} is an apocalyptic number.

206616342150066 is an abundant number, since it is smaller than the sum of its proper divisors (207323336180814).

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

206616342150066 is a wasteful number, since it uses less digits than its factorization.

206616342150066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3593718.

The product of its (nonzero) digits is 1866240, while the sum is 48.

Adding to 206616342150066 its reverse (660051243616602), we get a palindrome (866667585766668).

The spelling of 206616342150066 in words is "two hundred six trillion, six hundred sixteen billion, three hundred forty-two million, one hundred fifty thousand, sixty-six".