506655561611 has 8 divisors (see below), whose sum is σ = 509273820000. Its totient is φ = 504044009280.

The previous prime is 506655561551. The next prime is 506655561613. The reversal of 506655561611 is 116165556605.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-506655561611 is a prime.

It is a super-2 number, since 2×506655561611² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (506655561613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1524986 + ... + 1827263.

It is an arithmetic number, because the mean of its divisors is an integer number (63659227500).

Almost surely, 2^506655561611 is an apocalyptic number.

506655561611 is a deficient number, since it is larger than the sum of its proper divisors (2618258389).

506655561611 is a wasteful number, since it uses less digits than its factorization.

506655561611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3353029.

The product of its (nonzero) digits is 810000, while the sum is 47.

The spelling of 506655561611 in words is "five hundred six billion, six hundred fifty-five million, five hundred sixty-one thousand, six hundred eleven".