706273020161 has 4 divisors (see below), whose sum is σ = 743445284400. Its totient is φ = 669100755924.

The previous prime is 706273020157. The next prime is 706273020163. The reversal of 706273020161 is 161020372607.

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: 161020372607 = 19 ⋅8474756453.

It is a cyclic number.

It is not a de Polignac number, because 706273020161 - 2² = 706273020157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (706273020163) 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, 18586132091 + ... + 18586132128.

It is an arithmetic number, because the mean of its divisors is an integer number (185861321100).

Almost surely, 2^706273020161 is an apocalyptic number.

It is an amenable number.

706273020161 is a deficient number, since it is larger than the sum of its proper divisors (37172264239).

706273020161 is a wasteful number, since it uses less digits than its factorization.

706273020161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37172264238.

The product of its (nonzero) digits is 21168, while the sum is 35.

Adding to 706273020161 its reverse (161020372607), we get a palindrome (867293392768).

The spelling of 706273020161 in words is "seven hundred six billion, two hundred seventy-three million, twenty thousand, one hundred sixty-one".