65390163 has 8 divisors (see below), whose sum is σ = 87277008. Its totient is φ = 43548384.

The previous prime is 65390159. The next prime is 65390201. The reversal of 65390163 is 36109356.

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

It is not a de Polignac number, because 65390163 - 2² = 65390159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65390123) 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, 7720 + ... + 13797.

It is an arithmetic number, because the mean of its divisors is an integer number (10909626).

Almost surely, 2^65390163 is an apocalyptic number.

65390163 is a deficient number, since it is larger than the sum of its proper divisors (21886845).

65390163 is a wasteful number, since it uses less digits than its factorization.

65390163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22533.

The product of its (nonzero) digits is 14580, while the sum is 33.

The square root of 65390163 is about 8086.4184284515. The cubic root of 65390163 is about 402.8754528134.

The spelling of 65390163 in words is "sixty-five million, three hundred ninety thousand, one hundred sixty-three".