204345124015 has 16 divisors (see below), whose sum is σ = 251284239360. Its totient is φ = 159432206080.

The previous prime is 204345123989. The next prime is 204345124031. The reversal of 204345124015 is 510421543402.

It is not a de Polignac number, because 204345124015 - 2⁹ = 204345123503 is a prime.

It is a super-3 number, since 3×204345124015³ (a number of 35 digits) contains 333 as substring.

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 15 ways as a sum of consecutive naturals, for example, 405906 + ... + 757264.

It is an arithmetic number, because the mean of its divisors is an integer number (15705264960).

Almost surely, 2^204345124015 is an apocalyptic number.

204345124015 is a deficient number, since it is larger than the sum of its proper divisors (46939115345).

204345124015 is a wasteful number, since it uses less digits than its factorization.

204345124015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354242.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 204345124015 its reverse (510421543402), we get a palindrome (714766667417).

The spelling of 204345124015 in words is "two hundred four billion, three hundred forty-five million, one hundred twenty-four thousand, fifteen".