206550271340 has 96 divisors (see below), whose sum is σ = 527830732800. Its totient is φ = 67738173888.

The previous prime is 206550271259. The next prime is 206550271351. The reversal of 206550271340 is 43172055602.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 206550271340.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 496772 + ... + 812331.

It is an arithmetic number, because the mean of its divisors is an integer number (5498236800).

Almost surely, 2^206550271340 is an apocalyptic number.

206550271340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206550271340 is an abundant number, since it is smaller than the sum of its proper divisors (321280461460).

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

206550271340 is a wasteful number, since it uses less digits than its factorization.

206550271340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309156 (or 1309140 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 35.

The spelling of 206550271340 in words is "two hundred six billion, five hundred fifty million, two hundred seventy-one thousand, three hundred forty".