206849361072 has 80 divisors (see below), whose sum is σ = 540806243328. Its totient is φ = 68121246720.

The previous prime is 206849361029. The next prime is 206849361077. The reversal of 206849361072 is 270163948602.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (206849361077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2082328 + ... + 2179400.

Almost surely, 2^206849361072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206849361072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270403121664).

206849361072 is an abundant number, since it is smaller than the sum of its proper divisors (333956882256).

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

206849361072 is a wasteful number, since it uses less digits than its factorization.

206849361072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97618 (or 97612 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 48.

The spelling of 206849361072 in words is "two hundred six billion, eight hundred forty-nine million, three hundred sixty-one thousand, seventy-two".