501364650169 has 2 divisors, whose sum is σ = 501364650170. Its totient is φ = 501364650168.

The previous prime is 501364650151. The next prime is 501364650191. The reversal of 501364650169 is 961056463105.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 310430608569 + 190934041600 = 557163^2 + 436960^2 .

It is a cyclic number.

It is not a de Polignac number, because 501364650169 - 2³⁷ = 363925696697 is a prime.

It is a super-2 number, since 2×501364650169² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (501364650109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250682325084 + 250682325085.

It is an arithmetic number, because the mean of its divisors is an integer number (250682325085).

Almost surely, 2^501364650169 is an apocalyptic number.

It is an amenable number.

501364650169 is a deficient number, since it is larger than the sum of its proper divisors (1).

501364650169 is an equidigital number, since it uses as much as digits as its factorization.

501364650169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 583200, while the sum is 46.

The spelling of 501364650169 in words is "five hundred one billion, three hundred sixty-four million, six hundred fifty thousand, one hundred sixty-nine".