161735088123 has 20 divisors (see below), whose sum is σ = 276119163760. Its totient is φ = 92420050032.

The previous prime is 161735088103. The next prime is 161735088131. The reversal of 161735088123 is 321880537161.

It is a happy number.

161735088123 is a `hidden beast` number, since 1 + 6 + 17 + 3 + 508 + 8 + 123 = 666.

It is not a de Polignac number, because 161735088123 - 2⁵ = 161735088091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161735088103) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 142622968 + ... + 142624101.

It is an arithmetic number, because the mean of its divisors is an integer number (13805958188).

Almost surely, 2^161735088123 is an apocalyptic number.

161735088123 is a deficient number, since it is larger than the sum of its proper divisors (114384075637).

161735088123 is an equidigital number, since it uses as much as digits as its factorization.

161735088123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285247088 (or 285247079 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 161735088123 in words is "one hundred sixty-one billion, seven hundred thirty-five million, eighty-eight thousand, one hundred twenty-three".