206256020002 has 4 divisors (see below), whose sum is σ = 309384030006. Its totient is φ = 103128010000.

The previous prime is 206256019933. The next prime is 206256020011. The reversal of 206256020002 is 200020652602.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 200927166001 + 5328854001 = 448249^2 + 72999^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51564004999 + ... + 51564005002.

Almost surely, 2^206256020002 is an apocalyptic number.

206256020002 is a deficient number, since it is larger than the sum of its proper divisors (103128010004).

206256020002 is a wasteful number, since it uses less digits than its factorization.

206256020002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103128010003.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 206256020002 its reverse (200020652602), we get a palindrome (406276672604).

The spelling of 206256020002 in words is "two hundred six billion, two hundred fifty-six million, twenty thousand, two".