206030163506 has 4 divisors (see below), whose sum is σ = 309045245262. Its totient is φ = 103015081752.

The previous prime is 206030163503. The next prime is 206030163533. The reversal of 206030163506 is 605361030602.

206030163506 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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., 175721094481 + 30309069025 = 419191^2 + 174095^2 .

It is not an unprimeable number, because it can be changed into a prime (206030163503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51507540875 + ... + 51507540878.

Almost surely, 2^206030163506 is an apocalyptic number.

206030163506 is a deficient number, since it is larger than the sum of its proper divisors (103015081756).

206030163506 is a wasteful number, since it uses less digits than its factorization.

206030163506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103015081755.

The product of its (nonzero) digits is 19440, while the sum is 32.

The spelling of 206030163506 in words is "two hundred six billion, thirty million, one hundred sixty-three thousand, five hundred six".