65630165 has 16 divisors (see below), whose sum is σ = 80777088. Its totient is φ = 51170496.

The previous prime is 65630143. The next prime is 65630209. The reversal of 65630165 is 56103656.

It is a cyclic number.

It is not a de Polignac number, because 65630165 - 2¹⁸ = 65368021 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43514 + ... + 44996.

It is an arithmetic number, because the mean of its divisors is an integer number (5048568).

Almost surely, 2^65630165 is an apocalyptic number.

It is an amenable number.

65630165 is a deficient number, since it is larger than the sum of its proper divisors (15146923).

65630165 is a wasteful number, since it uses less digits than its factorization.

65630165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1708.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 65630165 is about 8101.2446574585. The cubic root of 65630165 is about 403.3677432716.

The spelling of 65630165 in words is "sixty-five million, six hundred thirty thousand, one hundred sixty-five".