161830583433 has 6 divisors (see below), whose sum is σ = 233755287194. Its totient is φ = 107887055616.

The previous prime is 161830583423. The next prime is 161830583437. The reversal of 161830583433 is 334385038161.

161830583433 is a `hidden beast` number, since 1 + 6 + 1 + 8 + 30 + 583 + 4 + 33 = 666.

It can be written as a sum of positive squares in only one way, i.e., 103998510144 + 57832073289 = 322488^2 + 240483^2 .

It is not a de Polignac number, because 161830583433 - 2⁴ = 161830583417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161830583437) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8990587960 + ... + 8990587977.

Almost surely, 2^161830583433 is an apocalyptic number.

It is an amenable number.

161830583433 is a deficient number, since it is larger than the sum of its proper divisors (71924703761).

161830583433 is a wasteful number, since it uses less digits than its factorization.

161830583433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17981175943 (or 17981175940 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 161830583433 in words is "one hundred sixty-one billion, eight hundred thirty million, five hundred eighty-three thousand, four hundred thirty-three".