65855163 has 8 divisors (see below), whose sum is σ = 95789376. Its totient is φ = 39912200.

The previous prime is 65855149. The next prime is 65855189. The reversal of 65855163 is 36155856.

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

It is a cyclic number.

It is not a de Polignac number, because 65855163 - 2⁴ = 65855147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65855113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 997773 + ... + 997838.

It is an arithmetic number, because the mean of its divisors is an integer number (11973672).

Almost surely, 2^65855163 is an apocalyptic number.

65855163 is a deficient number, since it is larger than the sum of its proper divisors (29934213).

65855163 is a wasteful number, since it uses less digits than its factorization.

65855163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1995625.

The product of its digits is 108000, while the sum is 39.

The square root of 65855163 is about 8115.1194076243. The cubic root of 65855163 is about 403.8281688471.

The spelling of 65855163 in words is "sixty-five million, eight hundred fifty-five thousand, one hundred sixty-three".