161283265129 has 32 divisors (see below), whose sum is σ = 193826880000. Its totient is φ = 131290274304.

The previous prime is 161283265021. The next prime is 161283265189. The reversal of 161283265129 is 921562382161.

161283265129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-161283265129 is a prime.

It is a super-2 number, since 2×161283265129² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161283265189) 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 31 ways as a sum of consecutive naturals, for example, 3089557 + ... + 3141325.

It is an arithmetic number, because the mean of its divisors is an integer number (6057090000).

Almost surely, 2^161283265129 is an apocalyptic number.

It is an amenable number.

161283265129 is a deficient number, since it is larger than the sum of its proper divisors (32543614871).

161283265129 is a wasteful number, since it uses less digits than its factorization.

161283265129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52057.

The product of its digits is 311040, while the sum is 46.

The spelling of 161283265129 in words is "one hundred sixty-one billion, two hundred eighty-three million, two hundred sixty-five thousand, one hundred twenty-nine".