505066161 has 8 divisors (see below), whose sum is σ = 673559584. Its totient is φ = 336641760.

The previous prime is 505066157. The next prime is 505066171. The reversal of 505066161 is 161660505.

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

It is not a de Polignac number, because 505066161 - 2² = 505066157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505066171) 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, 3330 + ... + 31956.

It is an arithmetic number, because the mean of its divisors is an integer number (84194948).

Almost surely, 2^505066161 is an apocalyptic number.

It is an amenable number.

505066161 is a deficient number, since it is larger than the sum of its proper divisors (168493423).

505066161 is a wasteful number, since it uses less digits than its factorization.

505066161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34511.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 505066161 is about 22473.6770689623. The cubic root of 505066161 is about 796.3721992150.

The spelling of 505066161 in words is "five hundred five million, sixty-six thousand, one hundred sixty-one".