161401151371 has 4 divisors (see below), whose sum is σ = 163444204000. Its totient is φ = 159358098744.

The previous prime is 161401151369. The next prime is 161401151377. The reversal of 161401151371 is 173151104161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 173151104161 = 7 ⋅24735872023.

It is a cyclic number.

It is not a de Polignac number, because 161401151371 - 2¹ = 161401151369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161401151377) 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 3 ways as a sum of consecutive naturals, for example, 1021526196 + ... + 1021526353.

It is an arithmetic number, because the mean of its divisors is an integer number (40861051000).

Almost surely, 2^161401151371 is an apocalyptic number.

161401151371 is a deficient number, since it is larger than the sum of its proper divisors (2043052629).

161401151371 is an equidigital number, since it uses as much as digits as its factorization.

161401151371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2043052628.

The product of its (nonzero) digits is 2520, while the sum is 31.

The spelling of 161401151371 in words is "one hundred sixty-one billion, four hundred one million, one hundred fifty-one thousand, three hundred seventy-one".