162543522420 has 96 divisors (see below), whose sum is σ = 508912185600. Its totient is φ = 43068834432.

The previous prime is 162543522391. The next prime is 162543522443. The reversal of 162543522420 is 24225345261.

162543522420 is a `hidden beast` number, since 1 + 62 + 5 + 4 + 352 + 242 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 873840 + ... + 1043399.

It is an arithmetic number, because the mean of its divisors is an integer number (5301168600).

Almost surely, 2^162543522420 is an apocalyptic number.

162543522420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

162543522420 is an abundant number, since it is smaller than the sum of its proper divisors (346368663180).

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

162543522420 is a wasteful number, since it uses less digits than its factorization.

162543522420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1917414 (or 1917406 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 162543522420 its reverse (24225345261), we get a palindrome (186768867681).

The spelling of 162543522420 in words is "one hundred sixty-two billion, five hundred forty-three million, five hundred twenty-two thousand, four hundred twenty".