161622158143488 has 208 divisors, whose sum is σ = 494106964243200. Its totient is φ = 46027335794688.

The previous prime is 161622158143471. The next prime is 161622158143529. The reversal of 161622158143488 is 884341851226161.

It is a super-2 number, since 2×161622158143488² (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 15 ways as a sum of consecutive naturals, for example, 23346688 + ... + 29467136.

Almost surely, 2^{161622158143488} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161622158143488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247053482121600).

161622158143488 is an abundant number, since it is smaller than the sum of its proper divisors (332484806099712).

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

161622158143488 is an equidigital number, since it uses as much as digits as its factorization.

161622158143488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6120790 (or 6120768 counting only the distinct ones).

The product of its digits is 17694720, while the sum is 60.

The spelling of 161622158143488 in words is "one hundred sixty-one trillion, six hundred twenty-two billion, one hundred fifty-eight million, one hundred forty-three thousand, four hundred eighty-eight".