511041040061 has 2 divisors, whose sum is σ = 511041040062. Its totient is φ = 511041040060.

The previous prime is 511041040039. The next prime is 511041040073. The reversal of 511041040061 is 160040140115.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 469677208900 + 41363831161 = 685330^2 + 203381^2 .

It is a cyclic number.

It is not a de Polignac number, because 511041040061 - 2²² = 511036845757 is a prime.

It is a super-2 number, since 2×511041040061² (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 (511041040001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255520520030 + 255520520031.

It is an arithmetic number, because the mean of its divisors is an integer number (255520520031).

Almost surely, 2^511041040061 is an apocalyptic number.

It is an amenable number.

511041040061 is a deficient number, since it is larger than the sum of its proper divisors (1).

511041040061 is an equidigital number, since it uses as much as digits as its factorization.

511041040061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 511041040061 its reverse (160040140115), we get a palindrome (671081180176).

The spelling of 511041040061 in words is "five hundred eleven billion, forty-one million, forty thousand, sixty-one".