161146348080 has 160 divisors (see below), whose sum is σ = 521484051456. Its totient is φ = 41087388672.

The previous prime is 161146348043. The next prime is 161146348087. The reversal of 161146348080 is 80843641161.

It is not an unprimeable number, because it can be changed into a prime (161146348087) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19498029 + ... + 19506291.

Almost surely, 2^161146348080 is an apocalyptic number.

161146348080 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 161146348080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260742025728).

161146348080 is an abundant number, since it is smaller than the sum of its proper divisors (360337703376).

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

161146348080 is a wasteful number, since it uses less digits than its factorization.

161146348080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11835 (or 11829 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The spelling of 161146348080 in words is "one hundred sixty-one billion, one hundred forty-six million, three hundred forty-eight thousand, eighty".