162671220 has 48 divisors (see below), whose sum is σ = 506089920. Its totient is φ = 43378848.

The previous prime is 162671219. The next prime is 162671221. The reversal of 162671220 is 22176261.

162671220 is a `hidden beast` number, since 1 + 626 + 7 + 12 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (162671219) and next prime (162671221).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162671221) by changing a digit.

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, 150082 + ... + 151161.

It is an arithmetic number, because the mean of its divisors is an integer number (10543540).

Almost surely, 2^162671220 is an apocalyptic number.

162671220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

162671220 is an abundant number, since it is smaller than the sum of its proper divisors (343418700).

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

162671220 is a wasteful number, since it uses less digits than its factorization.

162671220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301261 (or 301253 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 162671220 is about 12754.2628167997. The cubic root of 162671220 is about 545.8880340391. Note that the first 3 decimals are identical.

The spelling of 162671220 in words is "one hundred sixty-two million, six hundred seventy-one thousand, two hundred twenty".