511201524161 has 2 divisors, whose sum is σ = 511201524162. Its totient is φ = 511201524160.

The previous prime is 511201524149. The next prime is 511201524187. The reversal of 511201524161 is 161425102115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 492742225936 + 18459298225 = 701956^2 + 135865^2 .

It is a cyclic number.

It is not a de Polignac number, because 511201524161 - 2¹⁸ = 511201262017 is a prime.

It is a super-2 number, since 2×511201524161² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (511201524121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255600762080 + 255600762081.

It is an arithmetic number, because the mean of its divisors is an integer number (255600762081).

Almost surely, 2^511201524161 is an apocalyptic number.

It is an amenable number.

511201524161 is a deficient number, since it is larger than the sum of its proper divisors (1).

511201524161 is an equidigital number, since it uses as much as digits as its factorization.

511201524161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 29.

Adding to 511201524161 its reverse (161425102115), we get a palindrome (672626626276).

The spelling of 511201524161 in words is "five hundred eleven billion, two hundred one million, five hundred twenty-four thousand, one hundred sixty-one".