161168872480 has 192 divisors, whose sum is σ = 478458150912. Its totient is φ = 49838423040.

The previous prime is 161168872471. The next prime is 161168872517. The reversal of 161168872480 is 84278861161.

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, 1513137 + ... + 1616143.

It is an arithmetic number, because the mean of its divisors is an integer number (2491969536).

Almost surely, 2^161168872480 is an apocalyptic number.

161168872480 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 161168872480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239229075456).

161168872480 is an abundant number, since it is smaller than the sum of its proper divisors (317289278432).

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

161168872480 is a wasteful number, since it uses less digits than its factorization.

161168872480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103167 (or 103159 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 52.

The spelling of 161168872480 in words is "one hundred sixty-one billion, one hundred sixty-eight million, eight hundred seventy-two thousand, four hundred eighty".