536165281381 has 2 divisors, whose sum is σ = 536165281382. Its totient is φ = 536165281380.

The previous prime is 536165281297. The next prime is 536165281411. The reversal of 536165281381 is 183182561635.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 535143456225 + 1021825156 = 731535^2 + 31966^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-536165281381 is a prime.

It is a super-2 number, since 2×536165281381² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (536165281181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268082640690 + 268082640691.

It is an arithmetic number, because the mean of its divisors is an integer number (268082640691).

Almost surely, 2^536165281381 is an apocalyptic number.

It is an amenable number.

536165281381 is a deficient number, since it is larger than the sum of its proper divisors (1).

536165281381 is an equidigital number, since it uses as much as digits as its factorization.

536165281381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1036800, while the sum is 49.

The spelling of 536165281381 in words is "five hundred thirty-six billion, one hundred sixty-five million, two hundred eighty-one thousand, three hundred eighty-one".