245345327161 has 4 divisors (see below), whose sum is σ = 267649447824. Its totient is φ = 223041206500.

The previous prime is 245345327159. The next prime is 245345327167. The reversal of 245345327161 is 161723543542.

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 245345327161 - 2¹ = 245345327159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245345327167) 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, 11152060315 + ... + 11152060336.

It is an arithmetic number, because the mean of its divisors is an integer number (66912361956).

Almost surely, 2^245345327161 is an apocalyptic number.

It is an amenable number.

245345327161 is a deficient number, since it is larger than the sum of its proper divisors (22304120663).

245345327161 is a wasteful number, since it uses less digits than its factorization.

245345327161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22304120662.

The product of its digits is 604800, while the sum is 43.

The spelling of 245345327161 in words is "two hundred forty-five billion, three hundred forty-five million, three hundred twenty-seven thousand, one hundred sixty-one".