505651106605 has 8 divisors (see below), whose sum is σ = 606850877664. Its totient is φ = 404474518800.

The previous prime is 505651106573. The next prime is 505651106647. The reversal of 505651106605 is 506601156505.

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

It is not a de Polignac number, because 505651106605 - 2⁵ = 505651106573 is a prime.

It is a super-2 number, since 2×505651106605² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 5747791 + ... + 5835100.

It is an arithmetic number, because the mean of its divisors is an integer number (75856359708).

Almost surely, 2^505651106605 is an apocalyptic number.

It is an amenable number.

505651106605 is a deficient number, since it is larger than the sum of its proper divisors (101199771059).

505651106605 is a wasteful number, since it uses less digits than its factorization.

505651106605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11591627.

The product of its (nonzero) digits is 135000, while the sum is 40.

The spelling of 505651106605 in words is "five hundred five billion, six hundred fifty-one million, one hundred six thousand, six hundred five".