161124120644 has 36 divisors (see below), whose sum is σ = 303203687724. Its totient is φ = 74881879488.

The previous prime is 161124120617. The next prime is 161124120671. The reversal of 161124120644 is 446021421161.

161124120644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (161124120617) and next prime (161124120671).

It can be written as a sum of positive squares in 2 ways, for example, as 135893975044 + 25230145600 = 368638^2 + 158840^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 161124120644.

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 11 ways as a sum of consecutive naturals, for example, 976127 + ... + 1129190.

It is an arithmetic number, because the mean of its divisors is an integer number (8422324659).

Almost surely, 2^161124120644 is an apocalyptic number.

It is an amenable number.

161124120644 is a deficient number, since it is larger than the sum of its proper divisors (142079567080).

161124120644 is a wasteful number, since it uses less digits than its factorization.

161124120644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2105412 (or 2105391 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The spelling of 161124120644 in words is "one hundred sixty-one billion, one hundred twenty-four million, one hundred twenty thousand, six hundred forty-four".