206036412136 has 8 divisors (see below), whose sum is σ = 386318272770. Its totient is φ = 103018206064.

The previous prime is 206036412121. The next prime is 206036412173. The reversal of 206036412136 is 631214630602.

It can be written as a sum of positive squares in only one way, i.e., 155388909636 + 50647502500 = 394194^2 + 225050^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12877275751 + ... + 12877275766.

Almost surely, 2^206036412136 is an apocalyptic number.

It is an amenable number.

206036412136 is a deficient number, since it is larger than the sum of its proper divisors (180281860634).

206036412136 is a wasteful number, since it uses less digits than its factorization.

206036412136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25754551523 (or 25754551519 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 34.

The spelling of 206036412136 in words is "two hundred six billion, thirty-six million, four hundred twelve thousand, one hundred thirty-six".