206260553555 has 32 divisors (see below), whose sum is σ = 288404682624. Its totient is φ = 138691685376.

The previous prime is 206260553539. The next prime is 206260553561. The reversal of 206260553555 is 555355062602.

It is a cyclic number.

It is not a de Polignac number, because 206260553555 - 2⁴ = 206260553539 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 208697 + ... + 675333.

It is an arithmetic number, because the mean of its divisors is an integer number (9012646332).

Almost surely, 2^206260553555 is an apocalyptic number.

206260553555 is a deficient number, since it is larger than the sum of its proper divisors (82144129069).

206260553555 is a wasteful number, since it uses less digits than its factorization.

206260553555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466895.

The product of its (nonzero) digits is 1350000, while the sum is 44.

The spelling of 206260553555 in words is "two hundred six billion, two hundred sixty million, five hundred fifty-three thousand, five hundred fifty-five".