161429045727 has 8 divisors (see below), whose sum is σ = 215617005360. Its totient is φ = 107430224960.

The previous prime is 161429045719. The next prime is 161429045753. The reversal of 161429045727 is 727540924161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 161429045727 - 2³ = 161429045719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161429045027) 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 7 ways as a sum of consecutive naturals, for example, 47282724 + ... + 47286137.

It is an arithmetic number, because the mean of its divisors is an integer number (26952125670).

Almost surely, 2^161429045727 is an apocalyptic number.

161429045727 is a deficient number, since it is larger than the sum of its proper divisors (54187959633).

161429045727 is an equidigital number, since it uses as much as digits as its factorization.

161429045727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94569433.

The product of its (nonzero) digits is 846720, while the sum is 48.

Adding to 161429045727 its reverse (727540924161), we get a palindrome (888969969888).

The spelling of 161429045727 in words is "one hundred sixty-one billion, four hundred twenty-nine million, forty-five thousand, seven hundred twenty-seven".