505661160 has 32 divisors (see below), whose sum is σ = 1516983840. Its totient is φ = 134842944.

The previous prime is 505661131. The next prime is 505661161. The reversal of 505661160 is 61166505.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (505661161) 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, 2106802 + ... + 2107041.

It is an arithmetic number, because the mean of its divisors is an integer number (47405745).

Almost surely, 2^505661160 is an apocalyptic number.

It is an amenable number.

505661160 is an abundant number, since it is smaller than the sum of its proper divisors (1011322680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505661160 is a wasteful number, since it uses less digits than its factorization.

505661160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4213857 (or 4213853 counting only the distinct ones).

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

The square root of 505661160 is about 22486.9108594311. The cubic root of 505661160 is about 796.6848016351.

The spelling of 505661160 in words is "five hundred five million, six hundred sixty-one thousand, one hundred sixty".