205481138414 has 8 divisors (see below), whose sum is σ = 308472501960. Its totient is φ = 102656971096.

The previous prime is 205481138399. The next prime is 205481138437. The reversal of 205481138414 is 414831184502.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41795984 + ... + 41800899.

It is an arithmetic number, because the mean of its divisors is an integer number (38559062745).

Almost surely, 2^205481138414 is an apocalyptic number.

205481138414 is a deficient number, since it is larger than the sum of its proper divisors (102991363546).

205481138414 is a wasteful number, since it uses less digits than its factorization.

205481138414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83598114.

The product of its (nonzero) digits is 122880, while the sum is 41.

The spelling of 205481138414 in words is "two hundred five billion, four hundred eighty-one million, one hundred thirty-eight thousand, four hundred fourteen".