161070247589 has 4 divisors (see below), whose sum is σ = 168073301856. Its totient is φ = 154067193324.

The previous prime is 161070247579. The next prime is 161070247631. The reversal of 161070247589 is 985742070161.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 985742070161 = 128599 ⋅7665239.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161070247589 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161070247519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3501527099 + ... + 3501527144.

It is an arithmetic number, because the mean of its divisors is an integer number (42018325464).

Almost surely, 2^161070247589 is an apocalyptic number.

It is an amenable number.

161070247589 is a deficient number, since it is larger than the sum of its proper divisors (7003054267).

161070247589 is an equidigital number, since it uses as much as digits as its factorization.

161070247589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7003054266.

The product of its (nonzero) digits is 846720, while the sum is 50.

The spelling of 161070247589 in words is "one hundred sixty-one billion, seventy million, two hundred forty-seven thousand, five hundred eighty-nine".