206879040000 has 600 divisors, whose sum is σ = 772133822460. Its totient is φ = 53243904000.

The previous prime is 206879039953. The next prime is 206879040061. The reversal of 206879040000 is 40978602.

It can be written as a sum of positive squares in 10 ways, for example, as 14782669056 + 192096370944 = 121584^2 + 438288^2 .

It is a tau number, because it is divible by the number of its divisors (600).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 83518762 + ... + 83521238.

Almost surely, 2^206879040000 is an apocalyptic number.

206879040000 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 206879040000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (386066911230).

206879040000 is an abundant number, since it is smaller than the sum of its proper divisors (565254782460).

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

206879040000 is an equidigital number, since it uses as much as digits as its factorization.

206879040000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2550 (or 2516 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 206879040000 in words is "two hundred six billion, eight hundred seventy-nine million, forty thousand".