204413550406 has 16 divisors (see below), whose sum is σ = 334729884384. Its totient is φ = 93052321344.

The previous prime is 204413550379. The next prime is 204413550409. The reversal of 204413550406 is 604055314402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204413550409) 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, 53847826 + ... + 53851621.

It is an arithmetic number, because the mean of its divisors is an integer number (20920617774).

Almost surely, 2^204413550406 is an apocalyptic number.

204413550406 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

204413550406 is a deficient number, since it is larger than the sum of its proper divisors (130316333978).

204413550406 is a wasteful number, since it uses less digits than its factorization.

204413550406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107699535.

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 204413550406 its reverse (604055314402), we get a palindrome (808468864808).

The spelling of 204413550406 in words is "two hundred four billion, four hundred thirteen million, five hundred fifty thousand, four hundred six".