206233502136 has 64 divisors (see below), whose sum is σ = 520174116000. Its totient is φ = 68134464000.

The previous prime is 206233502099. The next prime is 206233502149. The reversal of 206233502136 is 631205332602.

It is a junction number, because it is equal to n+sod(n) for n = 206233502097 and 206233502106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1585986 + ... + 1711086.

Almost surely, 2^206233502136 is an apocalyptic number.

It is an amenable number.

206233502136 is an abundant number, since it is smaller than the sum of its proper divisors (313940613864).

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

206233502136 is a wasteful number, since it uses less digits than its factorization.

206233502136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125720 (or 125716 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 33.

Adding to 206233502136 its reverse (631205332602), we get a palindrome (837438834738).

The spelling of 206233502136 in words is "two hundred six billion, two hundred thirty-three million, five hundred two thousand, one hundred thirty-six".