161044197429 has 16 divisors (see below), whose sum is σ = 226997035200. Its totient is φ = 101275583616.

The previous prime is 161044197389. The next prime is 161044197437. The reversal of 161044197429 is 924791440161.

It is a happy number.

It is not a de Polignac number, because 161044197429 - 2⁹ = 161044196917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161044197029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6049674 + ... + 6076235.

It is an arithmetic number, because the mean of its divisors is an integer number (14187314700).

Almost surely, 2^161044197429 is an apocalyptic number.

161044197429 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

161044197429 is a deficient number, since it is larger than the sum of its proper divisors (65952837771).

161044197429 is a wasteful number, since it uses less digits than its factorization.

161044197429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12126164.

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 161044197429 in words is "one hundred sixty-one billion, forty-four million, one hundred ninety-seven thousand, four hundred twenty-nine".