204125356354 has 16 divisors (see below), whose sum is σ = 312188385600. Its totient is φ = 100065317040.

The previous prime is 204125356321. The next prime is 204125356399. The reversal of 204125356354 is 453653521402.

It is a super-2 number, since 2×204125356354² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 539952 + ... + 836539.

It is an arithmetic number, because the mean of its divisors is an integer number (19511774100).

Almost surely, 2^204125356354 is an apocalyptic number.

204125356354 is a deficient number, since it is larger than the sum of its proper divisors (108063029246).

204125356354 is a wasteful number, since it uses less digits than its factorization.

204125356354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377945.

The product of its (nonzero) digits is 432000, while the sum is 40.

Adding to 204125356354 its reverse (453653521402), we get a palindrome (657778877756).

The spelling of 204125356354 in words is "two hundred four billion, one hundred twenty-five million, three hundred fifty-six thousand, three hundred fifty-four".