162211380 has 48 divisors (see below), whose sum is σ = 455704704. Its totient is φ = 43112320.

The previous prime is 162211373. The next prime is 162211381. The reversal of 162211380 is 83112261.

It is a self number, because there is not a number n which added to its sum of digits gives 162211380.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162211381) 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, 14314 + ... + 23006.

It is an arithmetic number, because the mean of its divisors is an integer number (9493848).

Almost surely, 2^162211380 is an apocalyptic number.

162211380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

162211380 is an abundant number, since it is smaller than the sum of its proper divisors (293493324).

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

162211380 is a wasteful number, since it uses less digits than its factorization.

162211380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9016 (or 9014 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 162211380 is about 12736.2231450301. The cubic root of 162211380 is about 545.3731753872.

The spelling of 162211380 in words is "one hundred sixty-two million, two hundred eleven thousand, three hundred eighty".