205156023124024 has 48 divisors (see below), whose sum is σ = 448881986423880. Its totient is φ = 87646647049920.

The previous prime is 205156023123991. The next prime is 205156023124037. The reversal of 205156023124024 is 420421320651502.

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 11 ways as a sum of consecutive naturals, for example, 825360282 + ... + 825608809.

Almost surely, 2^{205156023124024} is an apocalyptic number.

It is an amenable number.

205156023124024 is an abundant number, since it is smaller than the sum of its proper divisors (243725963299856).

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

205156023124024 is a wasteful number, since it uses less digits than its factorization.

205156023124024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1650969428 (or 1650969417 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 205156023124024 its reverse (420421320651502), we get a palindrome (625577343775526).

The spelling of 205156023124024 in words is "two hundred five trillion, one hundred fifty-six billion, twenty-three million, one hundred twenty-four thousand, twenty-four".