161424314121503 has 8 divisors (see below), whose sum is σ = 162866758135200. Its totient is φ = 159988182773760.

The previous prime is 161424314121479. The next prime is 161424314121529. The reversal of 161424314121503 is 305121413424161.

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 161424314121503 - 2¹⁰ = 161424314120479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161424314181503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1578115118 + ... + 1578217403.

It is an arithmetic number, because the mean of its divisors is an integer number (20358344766900).

Almost surely, 2^{161424314121503} is an apocalyptic number.

161424314121503 is a deficient number, since it is larger than the sum of its proper divisors (1442444013697).

161424314121503 is a wasteful number, since it uses less digits than its factorization.

161424314121503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3156332977.

The product of its (nonzero) digits is 69120, while the sum is 38.

Adding to 161424314121503 its reverse (305121413424161), we get a palindrome (466545727545664).

The spelling of 161424314121503 in words is "one hundred sixty-one trillion, four hundred twenty-four billion, three hundred fourteen million, one hundred twenty-one thousand, five hundred three".