206827155361 has 16 divisors (see below), whose sum is σ = 209059401600. Its totient is φ = 204609335040.

The previous prime is 206827155349. The next prime is 206827155373. The reversal of 206827155361 is 163551728602.

It is an interprime number because it is at equal distance from previous prime (206827155349) and next prime (206827155373).

It is a cyclic number.

It is not a de Polignac number, because 206827155361 - 2¹⁷ = 206827024289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206827155761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39794815 + ... + 39800011.

It is an arithmetic number, because the mean of its divisors is an integer number (13066212600).

Almost surely, 2^206827155361 is an apocalyptic number.

It is an amenable number.

206827155361 is a deficient number, since it is larger than the sum of its proper divisors (2232246239).

206827155361 is a wasteful number, since it uses less digits than its factorization.

206827155361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6504.

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 206827155361 in words is "two hundred six billion, eight hundred twenty-seven million, one hundred fifty-five thousand, three hundred sixty-one".