161428614450 has 96 divisors (see below), whose sum is σ = 424309824576. Its totient is φ = 40475535360.

The previous prime is 161428614443. The next prime is 161428614481. The reversal of 161428614450 is 54416824161.

161428614450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2603509 + ... + 2664791.

It is an arithmetic number, because the mean of its divisors is an integer number (4419894006).

Almost surely, 2^161428614450 is an apocalyptic number.

161428614450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 161428614450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212154912288).

161428614450 is an abundant number, since it is smaller than the sum of its proper divisors (262881210126).

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

161428614450 is a wasteful number, since it uses less digits than its factorization.

161428614450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62348 (or 62343 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The spelling of 161428614450 in words is "one hundred sixty-one billion, four hundred twenty-eight million, six hundred fourteen thousand, four hundred fifty".