161128895675004 has 192 divisors, whose sum is σ = 430897818960000. Its totient is φ = 52036439685120.

The previous prime is 161128895674987. The next prime is 161128895675021. The reversal of 161128895675004 is 400576598821161.

161128895675004 is a `hidden beast` number, since 1 + 6 + 1 + 12 + 8 + 8 + 9 + 567 + 50 + 0 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (161128895674987) and next prime (161128895675021).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3281021602 + ... + 3281070710.

It is an arithmetic number, because the mean of its divisors is an integer number (2244259473750).

Almost surely, 2^{161128895675004} 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 161128895675004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215448909480000).

161128895675004 is an abundant number, since it is smaller than the sum of its proper divisors (269768923284996).

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

161128895675004 is a wasteful number, since it uses less digits than its factorization.

161128895675004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54285 (or 54277 counting only the distinct ones).

The product of its (nonzero) digits is 29030400, while the sum is 63.

The spelling of 161128895675004 in words is "one hundred sixty-one trillion, one hundred twenty-eight billion, eight hundred ninety-five million, six hundred seventy-five thousand, four".