161516061160 has 64 divisors (see below), whose sum is σ = 369454608000. Its totient is φ = 63535270656.

The previous prime is 161516061071. The next prime is 161516061173. The reversal of 161516061160 is 61160615161.

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, 1555014 + ... + 1655626.

It is an arithmetic number, because the mean of its divisors is an integer number (5772728250).

Almost surely, 2^161516061160 is an apocalyptic number.

161516061160 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 161516061160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184727304000).

161516061160 is an abundant number, since it is smaller than the sum of its proper divisors (207938546840).

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

161516061160 is a wasteful number, since it uses less digits than its factorization.

161516061160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101290 (or 101286 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 34.

The spelling of 161516061160 in words is "one hundred sixty-one billion, five hundred sixteen million, sixty-one thousand, one hundred sixty".