161433334161 has 48 divisors (see below), whose sum is σ = 258738225408. Its totient is φ = 96164409600.

The previous prime is 161433334121. The next prime is 161433334193.

161433334161 is a `hidden beast` number, since 1 + 61 + 433 + 3 + 3 + 4 + 161 = 666.

161433334161 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 161433334161 - 2⁷ = 161433334033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161433334121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8971005 + ... + 8988981.

It is an arithmetic number, because the mean of its divisors is an integer number (5390379696).

Almost surely, 2^161433334161 is an apocalyptic number.

161433334161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

161433334161 is a deficient number, since it is larger than the sum of its proper divisors (97304891247).

161433334161 is a wasteful number, since it uses less digits than its factorization.

161433334161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19542 (or 19539 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

It can be divided in two parts, 161433 and 334161, that added together give a palindrome (495594).

The spelling of 161433334161 in words is "one hundred sixty-one billion, four hundred thirty-three million, three hundred thirty-four thousand, one hundred sixty-one".