206145949368 has 32 divisors (see below), whose sum is σ = 515378223360. Its totient is φ = 68713536480.

The previous prime is 206145949313. The next prime is 206145949391. The reversal of 206145949368 is 863949541602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1106671 + ... + 1279457.

It is an arithmetic number, because the mean of its divisors is an integer number (16105569480).

Almost surely, 2^206145949368 is an apocalyptic number.

It is an amenable number.

206145949368 is an abundant number, since it is smaller than the sum of its proper divisors (309232273992).

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

206145949368 is a wasteful number, since it uses less digits than its factorization.

206145949368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222507 (or 222503 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 57.

The spelling of 206145949368 in words is "two hundred six billion, one hundred forty-five million, nine hundred forty-nine thousand, three hundred sixty-eight".