501466165 has 4 divisors (see below), whose sum is σ = 601759404. Its totient is φ = 401172928.

The previous prime is 501466159. The next prime is 501466211. The reversal of 501466165 is 561664105.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 139287204 + 362178961 = 11802^2 + 19031^2 .

It is a cyclic number.

It is not a de Polignac number, because 501466165 - 2⁷ = 501466037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 501466165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50146612 + ... + 50146621.

It is an arithmetic number, because the mean of its divisors is an integer number (150439851).

Almost surely, 2^501466165 is an apocalyptic number.

It is an amenable number.

501466165 is a deficient number, since it is larger than the sum of its proper divisors (100293239).

501466165 is a wasteful number, since it uses less digits than its factorization.

501466165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100293238.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 501466165 is about 22393.4402225295. The cubic root of 501466165 is about 794.4755662069.

The spelling of 501466165 in words is "five hundred one million, four hundred sixty-six thousand, one hundred sixty-five".