206267115356 has 6 divisors (see below), whose sum is σ = 360967451880. Its totient is φ = 103133557676.

The previous prime is 206267115323. The next prime is 206267115361. The reversal of 206267115356 is 653511762602.

It is a happy number.

It is a super-2 number, since 2×206267115356² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25783389416 + ... + 25783389423.

It is an arithmetic number, because the mean of its divisors is an integer number (60161241980).

Almost surely, 2^206267115356 is an apocalyptic number.

It is an amenable number.

206267115356 is a deficient number, since it is larger than the sum of its proper divisors (154700336524).

206267115356 is a wasteful number, since it uses less digits than its factorization.

206267115356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51566778843 (or 51566778841 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 44.

Adding to 206267115356 its reverse (653511762602), we get a palindrome (859778877958).

The spelling of 206267115356 in words is "two hundred six billion, two hundred sixty-seven million, one hundred fifteen thousand, three hundred fifty-six".