161214884856120 has 256 divisors, whose sum is σ = 486050112898560. Its totient is φ = 42777448988672.

The previous prime is 161214884856107. The next prime is 161214884856199. The reversal of 161214884856120 is 21658488412161.

161214884856120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 58053612172 + ... + 58053614948.

It is an arithmetic number, because the mean of its divisors is an integer number (1898633253510).

Almost surely, 2^{161214884856120} is an apocalyptic number.

161214884856120 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 161214884856120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243025056449280).

161214884856120 is an abundant number, since it is smaller than the sum of its proper divisors (324835228042440).

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

161214884856120 is a wasteful number, since it uses less digits than its factorization.

161214884856120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5542 (or 5538 counting only the distinct ones).

The product of its (nonzero) digits is 5898240, while the sum is 57.

The spelling of 161214884856120 in words is "one hundred sixty-one trillion, two hundred fourteen billion, eight hundred eighty-four million, eight hundred fifty-six thousand, one hundred twenty".