722342025161 has 4 divisors (see below), whose sum is σ = 753748200192. Its totient is φ = 690935850132.

The previous prime is 722342025157. The next prime is 722342025187. The reversal of 722342025161 is 161520243227.

722342025161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 722342025161 - 2² = 722342025157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (722342025131) 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, 15703087481 + ... + 15703087526.

It is an arithmetic number, because the mean of its divisors is an integer number (188437050048).

Almost surely, 2^722342025161 is an apocalyptic number.

It is an amenable number.

722342025161 is a deficient number, since it is larger than the sum of its proper divisors (31406175031).

722342025161 is a wasteful number, since it uses less digits than its factorization.

722342025161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31406175030.

The product of its (nonzero) digits is 40320, while the sum is 35.

Adding to 722342025161 its reverse (161520243227), we get a palindrome (883862268388).

The spelling of 722342025161 in words is "seven hundred twenty-two billion, three hundred forty-two million, twenty-five thousand, one hundred sixty-one".