206600008920 has 64 divisors (see below), whose sum is σ = 652421088000. Its totient is φ = 52193685888.

The previous prime is 206600008859. The next prime is 206600008961. The reversal of 206600008920 is 29800006602.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 45304740 + ... + 45309299.

It is an arithmetic number, because the mean of its divisors is an integer number (10194079500).

Almost surely, 2^206600008920 is an apocalyptic number.

206600008920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206600008920 is an abundant number, since it is smaller than the sum of its proper divisors (445821079080).

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

206600008920 is a wasteful number, since it uses less digits than its factorization.

206600008920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90614072 (or 90614068 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The spelling of 206600008920 in words is "two hundred six billion, six hundred million, eight thousand, nine hundred twenty".