505555403066 has 16 divisors (see below), whose sum is σ = 868827677760. Its totient is φ = 216126283200.

The previous prime is 505555403063. The next prime is 505555403069. The reversal of 505555403066 is 660304555505.

It is an interprime number because it is at equal distance from previous prime (505555403063) and next prime (505555403069).

It is not an unprimeable number, because it can be changed into a prime (505555403063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45020696 + ... + 45031923.

It is an arithmetic number, because the mean of its divisors is an integer number (54301729860).

Almost surely, 2^505555403066 is an apocalyptic number.

505555403066 is a deficient number, since it is larger than the sum of its proper divisors (363272274694).

505555403066 is a wasteful number, since it uses less digits than its factorization.

505555403066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90053029.

The product of its (nonzero) digits is 1350000, while the sum is 44.

The spelling of 505555403066 in words is "five hundred five billion, five hundred fifty-five million, four hundred three thousand, sixty-six".