206923806215248 has 10 divisors (see below), whose sum is σ = 400914874542074. Its totient is φ = 103461903107616.

The previous prime is 206923806215221. The next prime is 206923806215257. The reversal of 206923806215248 is 842512608329602.

It can be written as a sum of positive squares in only one way, i.e., 193456609041424 + 13467197173824 = 13908868^2 + 3669768^2 .

It is a junction number, because it is equal to n+sod(n) for n = 206923806215192 and 206923806215201.

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 as a sum of consecutive naturals, namely, 6466368944211 + ... + 6466368944242.

Almost surely, 2^{206923806215248} is an apocalyptic number.

It is an amenable number.

206923806215248 is a deficient number, since it is larger than the sum of its proper divisors (193991068326826).

206923806215248 is a wasteful number, since it uses less digits than its factorization.

206923806215248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12932737888461 (or 12932737888455 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 58.

The spelling of 206923806215248 in words is "two hundred six trillion, nine hundred twenty-three billion, eight hundred six million, two hundred fifteen thousand, two hundred forty-eight".