161065734830 has 256 divisors, whose sum is σ = 417410703360. Its totient is φ = 43058995200.

The previous prime is 161065734827. The next prime is 161065734839. The reversal of 161065734830 is 38437560161.

161065734830 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161065734839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 13437440 + ... + 13449420.

It is an arithmetic number, because the mean of its divisors is an integer number (1630510560).

Almost surely, 2^161065734830 is an apocalyptic number.

161065734830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161065734830 is an abundant number, since it is smaller than the sum of its proper divisors (256344968530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161065734830 is a wasteful number, since it uses less digits than its factorization.

161065734830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12115.

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 161065734830 in words is "one hundred sixty-one billion, sixty-five million, seven hundred thirty-four thousand, eight hundred thirty".