612103341561 has 4 divisors (see below), whose sum is σ = 816137788752. Its totient is φ = 408068894372.

The previous prime is 612103341547. The next prime is 612103341569. The reversal of 612103341561 is 165143301216.

It is a happy number.

612103341561 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 612103341561 - 2⁵ = 612103341529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (612103341569) 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, 102017223591 + ... + 102017223596.

It is an arithmetic number, because the mean of its divisors is an integer number (204034447188).

Almost surely, 2^612103341561 is an apocalyptic number.

It is an amenable number.

612103341561 is a deficient number, since it is larger than the sum of its proper divisors (204034447191).

612103341561 is a wasteful number, since it uses less digits than its factorization.

612103341561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204034447190.

The product of its (nonzero) digits is 12960, while the sum is 33.

Adding to 612103341561 its reverse (165143301216), we get a palindrome (777246642777).

The spelling of 612103341561 in words is "six hundred twelve billion, one hundred three million, three hundred forty-one thousand, five hundred sixty-one".