206555140132 has 12 divisors (see below), whose sum is σ = 394332540336. Its totient is φ = 93888700040.

The previous prime is 206555140109. The next prime is 206555140159. The reversal of 206555140132 is 231041555602.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2347217458 + ... + 2347217545.

It is an arithmetic number, because the mean of its divisors is an integer number (32861045028).

Almost surely, 2^206555140132 is an apocalyptic number.

206555140132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

206555140132 is a deficient number, since it is larger than the sum of its proper divisors (187777400204).

206555140132 is a wasteful number, since it uses less digits than its factorization.

206555140132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4694435018 (or 4694435016 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

Adding to 206555140132 its reverse (231041555602), we get a palindrome (437596695734).

The spelling of 206555140132 in words is "two hundred six billion, five hundred fifty-five million, one hundred forty thousand, one hundred thirty-two".