206021536214423 has 4 divisors (see below), whose sum is σ = 206025489021408. Its totient is φ = 206017583407440.

The previous prime is 206021536214393. The next prime is 206021536214437. The reversal of 206021536214423 is 324412635120602.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 206021536214423 - 2¹⁰ = 206021536213399 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 (206021536211423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1976325311 + ... + 1976429552.

It is an arithmetic number, because the mean of its divisors is an integer number (51506372255352).

Almost surely, 2^{206021536214423} is an apocalyptic number.

206021536214423 is a deficient number, since it is larger than the sum of its proper divisors (3952806985).

206021536214423 is an equidigital number, since it uses as much as digits as its factorization.

206021536214423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3952806984.

The product of its (nonzero) digits is 414720, while the sum is 41.

The spelling of 206021536214423 in words is "two hundred six trillion, twenty-one billion, five hundred thirty-six million, two hundred fourteen thousand, four hundred twenty-three".