205155451334 has 8 divisors (see below), whose sum is σ = 307736869800. Its totient is φ = 102576494736.

The previous prime is 205155451321. The next prime is 205155451351. The reversal of 205155451334 is 433154551502.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 390719 + ... + 750314.

It is an arithmetic number, because the mean of its divisors is an integer number (38467108725).

Almost surely, 2^205155451334 is an apocalyptic number.

205155451334 is a deficient number, since it is larger than the sum of its proper divisors (102581418466).

205155451334 is a wasteful number, since it uses less digits than its factorization.

205155451334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230934.

The product of its (nonzero) digits is 180000, while the sum is 38.

The spelling of 205155451334 in words is "two hundred five billion, one hundred fifty-five million, four hundred fifty-one thousand, three hundred thirty-four".