206123806165423 has 8 divisors (see below), whose sum is σ = 209027733787296. Its totient is φ = 203219900083200.

The previous prime is 206123806165399. The next prime is 206123806165441. The reversal of 206123806165423 is 324561608321602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 206123806165423 - 2²⁹ = 206123269294511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206123806865423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14397243 + ... + 24890323.

It is an arithmetic number, because the mean of its divisors is an integer number (26128466723412).

Almost surely, 2^{206123806165423} is an apocalyptic number.

206123806165423 is a deficient number, since it is larger than the sum of its proper divisors (2903927621873).

206123806165423 is a wasteful number, since it uses less digits than its factorization.

206123806165423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10769825.

The product of its (nonzero) digits is 2488320, while the sum is 49.

The spelling of 206123806165423 in words is "two hundred six trillion, one hundred twenty-three billion, eight hundred six million, one hundred sixty-five thousand, four hundred twenty-three".