161441275544 has 64 divisors (see below), whose sum is σ = 315696528000. Its totient is φ = 77303600640.

The previous prime is 161441275531. The next prime is 161441275607. The reversal of 161441275544 is 445572144161.

161441275544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 161441275495 and 161441275504.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 14392082 + ... + 14403294.

It is an arithmetic number, because the mean of its divisors is an integer number (4932758250).

Almost surely, 2^161441275544 is an apocalyptic number.

It is an amenable number.

161441275544 is a deficient number, since it is larger than the sum of its proper divisors (154255252456).

161441275544 is a wasteful number, since it uses less digits than its factorization.

161441275544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11748 (or 11744 counting only the distinct ones).

The product of its digits is 537600, while the sum is 44.

The spelling of 161441275544 in words is "one hundred sixty-one billion, four hundred forty-one million, two hundred seventy-five thousand, five hundred forty-four".