561363645431341 has 16 divisors (see below), whose sum is σ = 576371330777088. Its totient is φ = 546484238118000.

The previous prime is 561363645431297. The next prime is 561363645431363. The reversal of 561363645431341 is 143134546363165.

It is a cyclic number.

It is not a de Polignac number, because 561363645431341 - 2²¹ = 561363643334189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561363645431741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79965316 + ... + 86701666.

It is an arithmetic number, because the mean of its divisors is an integer number (36023208173568).

Almost surely, 2^{561363645431341} is an apocalyptic number.

It is an amenable number.

561363645431341 is a deficient number, since it is larger than the sum of its proper divisors (15007685345747).

561363645431341 is a wasteful number, since it uses less digits than its factorization.

561363645431341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6745872.

The product of its digits is 27993600, while the sum is 55.

The spelling of 561363645431341 in words is "five hundred sixty-one trillion, three hundred sixty-three billion, six hundred forty-five million, four hundred thirty-one thousand, three hundred forty-one".