162081380 has 24 divisors (see below), whose sum is σ = 347614848. Its totient is φ = 63452768.

The previous prime is 162081373. The next prime is 162081397. The reversal of 162081380 is 83180261.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85274 + ... + 87153.

It is an arithmetic number, because the mean of its divisors is an integer number (14483952).

Almost surely, 2^162081380 is an apocalyptic number.

162081380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

162081380 is an abundant number, since it is smaller than the sum of its proper divisors (185533468).

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

162081380 is a wasteful number, since it uses less digits than its factorization.

162081380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172483 (or 172481 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 162081380 is about 12731.1185682956. The cubic root of 162081380 is about 545.2274448366.

The spelling of 162081380 in words is "one hundred sixty-two million, eighty-one thousand, three hundred eighty".