61523166911 has 2 divisors, whose sum is σ = 61523166912. Its totient is φ = 61523166910.

The previous prime is 61523166871. The next prime is 61523166931. The reversal of 61523166911 is 11966132516.

61523166911 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61523166911 - 2³⁰ = 60449425087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61523166931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30761583455 + 30761583456.

It is an arithmetic number, because the mean of its divisors is an integer number (30761583456).

Almost surely, 2^61523166911 is an apocalyptic number.

61523166911 is a deficient number, since it is larger than the sum of its proper divisors (1).

61523166911 is an equidigital number, since it uses as much as digits as its factorization.

61523166911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 41.

The spelling of 61523166911 in words is "sixty-one billion, five hundred twenty-three million, one hundred sixty-six thousand, nine hundred eleven".