161606010564996 has 96 divisors (see below), whose sum is σ = 401714297026560. Its totient is φ = 50388989337600.

The previous prime is 161606010564991. The next prime is 161606010565009. The reversal of 161606010564996 is 699465010606161.

It is a happy number.

161606010564996 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161606010564996² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161606010564991) 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, 41341116 + ... + 45081036.

It is an arithmetic number, because the mean of its divisors is an integer number (4184523927360).

Almost surely, 2^{161606010564996} 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 161606010564996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200857148513280).

161606010564996 is an abundant number, since it is smaller than the sum of its proper divisors (240108286461564).

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

161606010564996 is a wasteful number, since it uses less digits than its factorization.

161606010564996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3741245 (or 3741243 counting only the distinct ones).

The product of its (nonzero) digits is 12597120, while the sum is 60.

The spelling of 161606010564996 in words is "one hundred sixty-one trillion, six hundred six billion, ten million, five hundred sixty-four thousand, nine hundred ninety-six".