206503840985200 has 120 divisors (see below), whose sum is σ = 541906884645840. Its totient is φ = 74998085836800.

The previous prime is 206503840985171. The next prime is 206503840985209. The reversal of 206503840985200 is 2589048305602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206503840985209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25936545 + ... + 32950144.

It is an arithmetic number, because the mean of its divisors is an integer number (4515890705382).

Almost surely, 2^{206503840985200} is an apocalyptic number.

206503840985200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206503840985200 is an abundant number, since it is smaller than the sum of its proper divisors (335403043660640).

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

206503840985200 is a wasteful number, since it uses less digits than its factorization.

206503840985200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58887515 (or 58887504 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 52.

The spelling of 206503840985200 in words is "two hundred six trillion, five hundred three billion, eight hundred forty million, nine hundred eighty-five thousand, two hundred".