5011242156261 has 16 divisors (see below), whose sum is σ = 8098977222720. Its totient is φ = 3037116458160.

The previous prime is 5011242156259. The next prime is 5011242156329. The reversal of 5011242156261 is 1626512421105.

5011242156261 is a `hidden beast` number, since 5 + 0 + 1 + 1 + 2 + 4 + 21 + 5 + 626 + 1 = 666.

It is not a de Polignac number, because 5011242156261 - 2¹ = 5011242156259 is a prime.

It is a super-2 number, since 2×5011242156261² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5011242156251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8436434310 + ... + 8436434903.

It is an arithmetic number, because the mean of its divisors is an integer number (506186076420).

Almost surely, 2^{5011242156261} is an apocalyptic number.

It is an amenable number.

5011242156261 is a deficient number, since it is larger than the sum of its proper divisors (3087735066459).

5011242156261 is a wasteful number, since it uses less digits than its factorization.

5011242156261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16872869233 (or 16872869227 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

Adding to 5011242156261 its reverse (1626512421105), we get a palindrome (6637754577366).

The spelling of 5011242156261 in words is "five trillion, eleven billion, two hundred forty-two million, one hundred fifty-six thousand, two hundred sixty-one".