161126601617 has 8 divisors (see below), whose sum is σ = 163556632800. Its totient is φ = 158697310464.

The previous prime is 161126601611. The next prime is 161126601667. The reversal of 161126601617 is 716106621161.

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 161126601617 - 2²⁰ = 161125553041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161126601611) 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, 261809 + ... + 625137.

It is an arithmetic number, because the mean of its divisors is an integer number (20444579100).

Almost surely, 2^161126601617 is an apocalyptic number.

It is an amenable number.

161126601617 is a deficient number, since it is larger than the sum of its proper divisors (2430031183).

161126601617 is an equidigital number, since it uses as much as digits as its factorization.

161126601617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370015.

The product of its (nonzero) digits is 18144, while the sum is 38.

The spelling of 161126601617 in words is "one hundred sixty-one billion, one hundred twenty-six million, six hundred one thousand, six hundred seventeen".