205234350406 has 8 divisors (see below), whose sum is σ = 309398518800. Its totient is φ = 102101510808.

The previous prime is 205234350403. The next prime is 205234350407. The reversal of 205234350406 is 604053432502.

205234350406 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×205234350406² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205234350403) 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, 257831701 + ... + 257832496.

It is an arithmetic number, because the mean of its divisors is an integer number (38674814850).

Almost surely, 2^205234350406 is an apocalyptic number.

205234350406 is a deficient number, since it is larger than the sum of its proper divisors (104164168394).

205234350406 is a wasteful number, since it uses less digits than its factorization.

205234350406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515664398.

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 205234350406 its reverse (604053432502), we get a palindrome (809287782908).

The spelling of 205234350406 in words is "two hundred five billion, two hundred thirty-four million, three hundred fifty thousand, four hundred six".