204120244334154 has 64 divisors (see below), whose sum is σ = 417578136192000. Its totient is φ = 66497419196160.

The previous prime is 204120244334147. The next prime is 204120244334203. The reversal of 204120244334154 is 451433442021402.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 268355427 + ... + 269114985.

It is an arithmetic number, because the mean of its divisors is an integer number (6524658378000).

Almost surely, 2^{204120244334154} is an apocalyptic number.

204120244334154 is an abundant number, since it is smaller than the sum of its proper divisors (213457891857846).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204120244334154 is a wasteful number, since it uses less digits than its factorization.

204120244334154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764043.

The product of its (nonzero) digits is 368640, while the sum is 39.

Adding to 204120244334154 its reverse (451433442021402), we get a palindrome (655553686355556).

The spelling of 204120244334154 in words is "two hundred four trillion, one hundred twenty billion, two hundred forty-four million, three hundred thirty-four thousand, one hundred fifty-four".