206531122600 has 96 divisors (see below), whose sum is σ = 529025113440. Its totient is φ = 74358560000.

The previous prime is 206531122531. The next prime is 206531122613. The reversal of 206531122600 is 6221135602.

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 23 ways as a sum of consecutive naturals, for example, 242542 + ... + 686941.

It is an arithmetic number, because the mean of its divisors is an integer number (5510678265).

Almost surely, 2^206531122600 is an apocalyptic number.

206531122600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206531122600 is an abundant number, since it is smaller than the sum of its proper divisors (322493990840).

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

206531122600 is a wasteful number, since it uses less digits than its factorization.

206531122600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929611 (or 929602 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 206531122600 in words is "two hundred six billion, five hundred thirty-one million, one hundred twenty-two thousand, six hundred".