206043626146 has 4 divisors (see below), whose sum is σ = 309065439222. Its totient is φ = 103021813072.

The previous prime is 206043626137. The next prime is 206043626207. The reversal of 206043626146 is 641626340602.

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., 138879202225 + 67164423921 = 372665^2 + 259161^2 .

It is a super-2 number, since 2×206043626146² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 206043626099 and 206043626108.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51510906535 + ... + 51510906538.

Almost surely, 2^206043626146 is an apocalyptic number.

206043626146 is a deficient number, since it is larger than the sum of its proper divisors (103021813076).

206043626146 is a wasteful number, since it uses less digits than its factorization.

206043626146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103021813075.

The product of its (nonzero) digits is 248832, while the sum is 40.

Adding to 206043626146 its reverse (641626340602), we get a palindrome (847669966748).

The spelling of 206043626146 in words is "two hundred six billion, forty-three million, six hundred twenty-six thousand, one hundred forty-six".