206579180388 has 24 divisors (see below), whose sum is σ = 550877814592. Its totient is φ = 59022622944.

The previous prime is 206579180369. The next prime is 206579180389. The reversal of 206579180388 is 883081975602.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (206579180389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1229637895 + ... + 1229638062.

Almost surely, 2^206579180388 is an apocalyptic number.

206579180388 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

206579180388 is an abundant number, since it is smaller than the sum of its proper divisors (344298634204).

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

206579180388 is a wasteful number, since it uses less digits than its factorization.

206579180388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2459275971 (or 2459275969 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 57.

The spelling of 206579180388 in words is "two hundred six billion, five hundred seventy-nine million, one hundred eighty thousand, three hundred eighty-eight".