162591017869056 has 216 divisors, whose sum is σ = 503767149306960. Its totient is φ = 46418745655296.

The previous prime is 162591017869043. The next prime is 162591017869061. The reversal of 162591017869056 is 650968710195261.

It is a happy number.

It is a super-2 number, since 2×162591017869056² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47143110 + ... + 50474298.

Almost surely, 2^{162591017869056} is an apocalyptic number.

162591017869056 is a gapful number since it is divisible by the number (16) 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 162591017869056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251883574653480).

162591017869056 is an abundant number, since it is smaller than the sum of its proper divisors (341176131437904).

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

162591017869056 is a wasteful number, since it uses less digits than its factorization.

162591017869056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3332519 (or 3332498 counting only the distinct ones).

The product of its (nonzero) digits is 48988800, while the sum is 66.

The spelling of 162591017869056 in words is "one hundred sixty-two trillion, five hundred ninety-one billion, seventeen million, eight hundred sixty-nine thousand, fifty-six".