206858992368 has 160 divisors (see below), whose sum is σ = 622918273536. Its totient is φ = 57925131264.

The previous prime is 206858992339. The next prime is 206858992369. The reversal of 206858992368 is 863299858602.

206858992368 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 206858992299 and 206858992308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206858992369) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 18033771 + ... + 18045237.

Almost surely, 2^206858992368 is an apocalyptic number.

206858992368 is a gapful number since it is divisible by the number (28) 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 206858992368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (311459136768).

206858992368 is an abundant number, since it is smaller than the sum of its proper divisors (416059281168).

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

206858992368 is a wasteful number, since it uses less digits than its factorization.

206858992368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12551 (or 12545 counting only the distinct ones).

The product of its (nonzero) digits is 89579520, while the sum is 66.

The spelling of 206858992368 in words is "two hundred six billion, eight hundred fifty-eight million, nine hundred ninety-two thousand, three hundred sixty-eight".