206161692325 has 24 divisors (see below), whose sum is σ = 258959120000. Its totient is φ = 162789644160.

The previous prime is 206161692293. The next prime is 206161692349. The reversal of 206161692325 is 523296161602.

It is not a de Polignac number, because 206161692325 - 2⁵ = 206161692293 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6895609 + ... + 6925441.

Almost surely, 2^206161692325 is an apocalyptic number.

206161692325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

206161692325 is a deficient number, since it is larger than the sum of its proper divisors (52797427675).

206161692325 is a wasteful number, since it uses less digits than its factorization.

206161692325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33421 (or 33416 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 43.

The spelling of 206161692325 in words is "two hundred six billion, one hundred sixty-one million, six hundred ninety-two thousand, three hundred twenty-five".