162231680 has 256 divisors, whose sum is σ = 468840960. Its totient is φ = 53084160.

The previous prime is 162231653. The next prime is 162231683. The reversal of 162231680 is 86132261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162231683) 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 31 ways as a sum of consecutive naturals, for example, 4384622 + ... + 4384658.

It is an arithmetic number, because the mean of its divisors is an integer number (1831410).

Almost surely, 2^162231680 is an apocalyptic number.

162231680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 162231680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234420480).

162231680 is an abundant number, since it is smaller than the sum of its proper divisors (306609280).

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

162231680 is a wasteful number, since it uses less digits than its factorization.

162231680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117 (or 105 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 162231680 is about 12737.0200596529. The cubic root of 162231680 is about 545.3959247440.

The spelling of 162231680 in words is "one hundred sixty-two million, two hundred thirty-one thousand, six hundred eighty".