9856450165 has 16 divisors (see below), whose sum is σ = 12786750720. Its totient is φ = 7268253120.

The previous prime is 9856450133. The next prime is 9856450181. The reversal of 9856450165 is 5610546589.

It is not a de Polignac number, because 9856450165 - 2⁵ = 9856450133 is a prime.

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, 1398541 + ... + 1405570.

It is an arithmetic number, because the mean of its divisors is an integer number (799171920).

Almost surely, 2^9856450165 is an apocalyptic number.

9856450165 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

9856450165 is a deficient number, since it is larger than the sum of its proper divisors (2930300555).

9856450165 is a wasteful number, since it uses less digits than its factorization.

9856450165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2804172.

The product of its (nonzero) digits is 1296000, while the sum is 49.

The square root of 9856450165 is about 99279.6563501305. The cubic root of 9856450165 is about 2144.0760063838.

The spelling of 9856450165 in words is "nine billion, eight hundred fifty-six million, four hundred fifty thousand, one hundred sixty-five".