206015211120066 has 16 divisors (see below), whose sum is σ = 412308633211488. Its totient is φ = 68625368544800.

The previous prime is 206015211120053. The next prime is 206015211120097. The reversal of 206015211120066 is 660021112510602.

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, 11592114180 + ... + 11592131951.

It is an arithmetic number, because the mean of its divisors is an integer number (25769289575718).

Almost surely, 2^{206015211120066} is an apocalyptic number.

206015211120066 is an abundant number, since it is smaller than the sum of its proper divisors (206293422091422).

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

206015211120066 is a wasteful number, since it uses less digits than its factorization.

206015211120066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23184247617.

The product of its (nonzero) digits is 8640, while the sum is 33.

Adding to 206015211120066 its reverse (660021112510602), we get a palindrome (866036323630668).

The spelling of 206015211120066 in words is "two hundred six trillion, fifteen billion, two hundred eleven million, one hundred twenty thousand, sixty-six".