505411216642 has 16 divisors (see below), whose sum is σ = 764877398040. Its totient is φ = 250452385792.

The previous prime is 505411216591. The next prime is 505411216643. The reversal of 505411216642 is 246612114505.

It can be written as a sum of positive squares in 4 ways, for example, as 397024749801 + 108386466841 = 630099^2 + 329221^2 .

It is not an unprimeable number, because it can be changed into a prime (505411216643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3701034 + ... + 3835162.

Almost surely, 2^505411216642 is an apocalyptic number.

505411216642 is a deficient number, since it is larger than the sum of its proper divisors (259466181398).

505411216642 is a wasteful number, since it uses less digits than its factorization.

505411216642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150917.

The product of its (nonzero) digits is 57600, while the sum is 37.

The spelling of 505411216642 in words is "five hundred five billion, four hundred eleven million, two hundred sixteen thousand, six hundred forty-two".