161461886146 has 16 divisors (see below), whose sum is σ = 269195462208. Its totient is φ = 72007015600.

The previous prime is 161461886143. The next prime is 161461886189. The reversal of 161461886146 is 641688164161.

161461886146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 161461886093 and 161461886102.

It is not an unprimeable number, because it can be changed into a prime (161461886143) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 69236350 + ... + 69238681.

It is an arithmetic number, because the mean of its divisors is an integer number (16824716388).

Almost surely, 2^161461886146 is an apocalyptic number.

161461886146 is a deficient number, since it is larger than the sum of its proper divisors (107733576062).

161461886146 is a wasteful number, since it uses less digits than its factorization.

161461886146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138475097.

The product of its digits is 1327104, while the sum is 52.

The spelling of 161461886146 in words is "one hundred sixty-one billion, four hundred sixty-one million, eight hundred eighty-six thousand, one hundred forty-six".