206187166330 has 16 divisors (see below), whose sum is σ = 374963054760. Its totient is φ = 81624609792.

The previous prime is 206187166327. The next prime is 206187166343. The reversal of 206187166330 is 33661781602.

It can be written as a sum of positive squares in 4 ways, for example, as 150846015321 + 55341151009 = 388389^2 + 235247^2 .

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, 106281075 + ... + 106283014.

Almost surely, 2^206187166330 is an apocalyptic number.

206187166330 is a deficient number, since it is larger than the sum of its proper divisors (168775888430).

206187166330 is a wasteful number, since it uses less digits than its factorization.

206187166330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212564193.

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 206187166330 in words is "two hundred six billion, one hundred eighty-seven million, one hundred sixty-six thousand, three hundred thirty".