206144134036530 has 64 divisors (see below), whose sum is σ = 496053966827520. Its totient is φ = 54826440155136.

The previous prime is 206144134036523. The next prime is 206144134036531. The reversal of 206144134036530 is 35630431441602.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (206144134036531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 370078866 + ... + 370635474.

It is an arithmetic number, because the mean of its divisors is an integer number (7750843231680).

Almost surely, 2^{206144134036530} is an apocalyptic number.

206144134036530 is an abundant number, since it is smaller than the sum of its proper divisors (289909832790990).

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

206144134036530 is a wasteful number, since it uses less digits than its factorization.

206144134036530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589235.

The product of its (nonzero) digits is 622080, while the sum is 42.

The spelling of 206144134036530 in words is "two hundred six trillion, one hundred forty-four billion, one hundred thirty-four million, thirty-six thousand, five hundred thirty".