206255344051650 has 48 divisors (see below), whose sum is σ = 511514205084864. Its totient is φ = 55001322732480.

The previous prime is 206255344051633. The next prime is 206255344051651. The reversal of 206255344051650 is 56150443552602.

It is a self number, because there is not a number n which added to its sum of digits gives 206255344051650.

It is not an unprimeable number, because it can be changed into a prime (206255344051651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114271992 + ... + 116062908.

It is an arithmetic number, because the mean of its divisors is an integer number (10656545939268).

Almost surely, 2^{206255344051650} is an apocalyptic number.

206255344051650 is an abundant number, since it is smaller than the sum of its proper divisors (305258861033214).

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

206255344051650 is a wasteful number, since it uses less digits than its factorization.

206255344051650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2558715 (or 2558710 counting only the distinct ones).

The product of its (nonzero) digits is 4320000, while the sum is 48.

The spelling of 206255344051650 in words is "two hundred six trillion, two hundred fifty-five billion, three hundred forty-four million, fifty-one thousand, six hundred fifty".