162164865 has 16 divisors (see below), whose sum is σ = 259694208. Its totient is φ = 86411136.

The previous prime is 162164851. The next prime is 162164869. The reversal of 162164865 is 568461261.

It is a happy number.

It is not a de Polignac number, because 162164865 - 2⁵ = 162164833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (162164869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15397 + ... + 23693.

It is an arithmetic number, because the mean of its divisors is an integer number (16230888).

Almost surely, 2^162164865 is an apocalyptic number.

162164865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

162164865 is a deficient number, since it is larger than the sum of its proper divisors (97529343).

162164865 is a wasteful number, since it uses less digits than its factorization.

162164865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9608.

The product of its digits is 69120, while the sum is 39.

The square root of 162164865 is about 12734.3969232940. The cubic root of 162164865 is about 545.3210408237.

The spelling of 162164865 in words is "one hundred sixty-two million, one hundred sixty-four thousand, eight hundred sixty-five".