161606110605096 has 128 divisors (see below), whose sum is σ = 418842420480000. Its totient is φ = 51899748311040.

The previous prime is 161606110605089. The next prime is 161606110605101. The reversal of 161606110605096 is 690506011606161.

It is a super-2 number, since 2×161606110605096² (a number of 29 digits) contains 22 as substring.

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, 2153533336 + ... + 2153608376.

It is an arithmetic number, because the mean of its divisors is an integer number (3272206410000).

Almost surely, 2^{161606110605096} 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 161606110605096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209421210240000).

161606110605096 is an abundant number, since it is smaller than the sum of its proper divisors (257236309874904).

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

161606110605096 is a wasteful number, since it uses less digits than its factorization.

161606110605096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81667 (or 81663 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 48.

The spelling of 161606110605096 in words is "one hundred sixty-one trillion, six hundred six billion, one hundred ten million, six hundred five thousand, ninety-six".