206781367080 has 64 divisors (see below), whose sum is σ = 640355212800. Its totient is φ = 53362932480.

The previous prime is 206781367033. The next prime is 206781367103. The reversal of 206781367080 is 80763187602.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27789475 + ... + 27796914.

It is an arithmetic number, because the mean of its divisors is an integer number (10005550200).

Almost surely, 2^206781367080 is an apocalyptic number.

206781367080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206781367080 is an abundant number, since it is smaller than the sum of its proper divisors (433573845720).

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

206781367080 is a wasteful number, since it uses less digits than its factorization.

206781367080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55586434 (or 55586430 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 48.

The spelling of 206781367080 in words is "two hundred six billion, seven hundred eighty-one million, three hundred sixty-seven thousand, eighty".