60555531691 has 2 divisors, whose sum is σ = 60555531692. Its totient is φ = 60555531690.

The previous prime is 60555531563. The next prime is 60555531703. The reversal of 60555531691 is 19613555506.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 60555531691 - 2⁷ = 60555531563 is a prime.

It is not a weakly prime, because it can be changed into another prime (60555531391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30277765845 + 30277765846.

It is an arithmetic number, because the mean of its divisors is an integer number (30277765846).

Almost surely, 2^60555531691 is an apocalyptic number.

60555531691 is a deficient number, since it is larger than the sum of its proper divisors (1).

60555531691 is an equidigital number, since it uses as much as digits as its factorization.

60555531691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 607500, while the sum is 46.

The spelling of 60555531691 in words is "sixty billion, five hundred fifty-five million, five hundred thirty-one thousand, six hundred ninety-one".