162823409280 has 1536 divisors, whose sum is σ = 732564000000. Its totient is φ = 33944666112.

The previous prime is 162823409233. The next prime is 162823409323. The reversal of 162823409280 is 82904328261.

162823409280 is a `hidden beast` number, since 1 + 6 + 28 + 2 + 340 + 9 + 280 = 666.

It is a super-2 number, since 2×162823409280² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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 191 ways as a sum of consecutive naturals, for example, 466542546 + ... + 466542894.

Almost surely, 2^162823409280 is an apocalyptic number.

162823409280 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 162823409280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (366282000000).

162823409280 is an abundant number, since it is smaller than the sum of its proper divisors (569740590720).

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

162823409280 is a wasteful number, since it uses less digits than its factorization.

162823409280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439 (or 414 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 162823409280 in words is "one hundred sixty-two billion, eight hundred twenty-three million, four hundred nine thousand, two hundred eighty".