5261513666331 has 32 divisors (see below), whose sum is σ = 8009479303168. Its totient is φ = 3048720923520.

The previous prime is 5261513666243. The next prime is 5261513666449. The reversal of 5261513666331 is 1336663151625.

It is not a de Polignac number, because 5261513666331 - 2¹⁴ = 5261513649947 is a prime.

It is a super-2 number, since 2×5261513666331² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5261513666231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58765471 + ... + 58854936.

It is an arithmetic number, because the mean of its divisors is an integer number (250296228224).

Almost surely, 2^{5261513666331} is an apocalyptic number.

5261513666331 is a deficient number, since it is larger than the sum of its proper divisors (2747965636837).

5261513666331 is a wasteful number, since it uses less digits than its factorization.

5261513666331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117620491.

The product of its digits is 1749600, while the sum is 48.

The spelling of 5261513666331 in words is "five trillion, two hundred sixty-one billion, five hundred thirteen million, six hundred sixty-six thousand, three hundred thirty-one".