611605241353 has 4 divisors (see below), whose sum is σ = 611753011920. Its totient is φ = 611457470788.

The previous prime is 611605241311. The next prime is 611605241363. The reversal of 611605241353 is 353142506116.

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 a de Polignac number, because none of the positive numbers 2^k-611605241353 is a prime.

It is a super-4 number, since 4×611605241353⁴ (a number of 48 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (611605241363) 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, 73879075 + ... + 73887352.

It is an arithmetic number, because the mean of its divisors is an integer number (152938252980).

Almost surely, 2^611605241353 is an apocalyptic number.

It is an amenable number.

611605241353 is a deficient number, since it is larger than the sum of its proper divisors (147770567).

611605241353 is a wasteful number, since it uses less digits than its factorization.

611605241353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147770566.

The product of its (nonzero) digits is 64800, while the sum is 37.

Adding to 611605241353 its reverse (353142506116), we get a palindrome (964747747469).

The spelling of 611605241353 in words is "six hundred eleven billion, six hundred five million, two hundred forty-one thousand, three hundred fifty-three".