162020505 has 16 divisors (see below), whose sum is σ = 272877120. Its totient is φ = 81862848.

The previous prime is 162020497. The next prime is 162020531. The reversal of 162020505 is 505020261.

It is not a de Polignac number, because 162020505 - 2³ = 162020497 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283962 + ... + 284531.

It is an arithmetic number, because the mean of its divisors is an integer number (17054820).

Almost surely, 2^162020505 is an apocalyptic number.

162020505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

162020505 is a deficient number, since it is larger than the sum of its proper divisors (110856615).

162020505 is a wasteful number, since it uses less digits than its factorization.

162020505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568520.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 162020505 is about 12728.7275483451. The cubic root of 162020505 is about 545.1591769150.

Adding to 162020505 its reverse (505020261), we get a palindrome (667040766).

The spelling of 162020505 in words is "one hundred sixty-two million, twenty thousand, five hundred five".