206579425920 has 256 divisors, whose sum is σ = 778490438400. Its totient is φ = 45589856256.

The previous prime is 206579425889. The next prime is 206579425999. The reversal of 206579425920 is 29524975602.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 124752 + ... + 654768.

It is an arithmetic number, because the mean of its divisors is an integer number (3040978275).

Almost surely, 2^206579425920 is an apocalyptic number.

206579425920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206579425920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (389245219200).

206579425920 is an abundant number, since it is smaller than the sum of its proper divisors (571911012480).

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

206579425920 is a wasteful number, since it uses less digits than its factorization.

206579425920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530075 (or 530063 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 51.

The spelling of 206579425920 in words is "two hundred six billion, five hundred seventy-nine million, four hundred twenty-five thousand, nine hundred twenty".