161410563621 has 8 divisors (see below), whose sum is σ = 239126760960. Its totient is φ = 107607042396.

The previous prime is 161410563569. The next prime is 161410563661. The reversal of 161410563621 is 126365014161.

161410563621 is a `hidden beast` number, since 1 + 6 + 1 + 4 + 10 + 5 + 636 + 2 + 1 = 666.

161410563621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 161410563621 - 2¹⁰ = 161410562597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161410563661) 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, 2989084485 + ... + 2989084538.

It is an arithmetic number, because the mean of its divisors is an integer number (29890845120).

Almost surely, 2^161410563621 is an apocalyptic number.

It is an amenable number.

161410563621 is a deficient number, since it is larger than the sum of its proper divisors (77716197339).

161410563621 is an equidigital number, since it uses as much as digits as its factorization.

161410563621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5978169032 (or 5978169026 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

Adding to 161410563621 its reverse (126365014161), we get a palindrome (287775577782).

The spelling of 161410563621 in words is "one hundred sixty-one billion, four hundred ten million, five hundred sixty-three thousand, six hundred twenty-one".