162436636544 has 256 divisors, whose sum is σ = 411099494400. Its totient is φ = 62216847360.

The previous prime is 162436636517. The next prime is 162436636577. The reversal of 162436636544 is 445636634261.

It is a junction number, because it is equal to n+sod(n) for n = 162436636492 and 162436636501.

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, 66380729 + ... + 66383175.

It is an arithmetic number, because the mean of its divisors is an integer number (1605857400).

Almost surely, 2^162436636544 is an apocalyptic number.

162436636544 is a gapful number since it is divisible by the number (14) 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 162436636544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205549747200).

162436636544 is an abundant number, since it is smaller than the sum of its proper divisors (248662857856).

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

162436636544 is a wasteful number, since it uses less digits than its factorization.

162436636544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2661 (or 2649 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 50.

The spelling of 162436636544 in words is "one hundred sixty-two billion, four hundred thirty-six million, six hundred thirty-six thousand, five hundred forty-four".