161330227160 has 32 divisors (see below), whose sum is σ = 363066891840. Its totient is φ = 64518956544.

The previous prime is 161330227117. The next prime is 161330227181. The reversal of 161330227160 is 61722033161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210257 + ... + 605696.

It is an arithmetic number, because the mean of its divisors is an integer number (11345840370).

Almost surely, 2^161330227160 is an apocalyptic number.

161330227160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161330227160 is an abundant number, since it is smaller than the sum of its proper divisors (201736664680).

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

161330227160 is a wasteful number, since it uses less digits than its factorization.

161330227160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820907 (or 820903 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The spelling of 161330227160 in words is "one hundred sixty-one billion, three hundred thirty million, two hundred twenty-seven thousand, one hundred sixty".