162162020 has 24 divisors (see below), whose sum is σ = 340972800. Its totient is φ = 64782432.

The previous prime is 162161977. The next prime is 162162037. The reversal of 162162020 is 20261261.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 162161983 and 162162001.

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 7 ways as a sum of consecutive naturals, for example, 12461 + ... + 21899.

It is an arithmetic number, because the mean of its divisors is an integer number (14207200).

Almost surely, 2^162162020 is an apocalyptic number.

162162020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

162162020 is an abundant number, since it is smaller than the sum of its proper divisors (178810780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

162162020 is a wasteful number, since it uses less digits than its factorization.

162162020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10307 (or 10305 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 162162020 is about 12734.2852174749. The cubic root of 162162020 is about 545.3178517905.

The spelling of 162162020 in words is "one hundred sixty-two million, one hundred sixty-two thousand, twenty".