561730061201 has 4 divisors (see below), whose sum is σ = 561938652852. Its totient is φ = 561521469552.

The previous prime is 561730061153. The next prime is 561730061237. The reversal of 561730061201 is 102160037165.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102160037165 = 5 ⋅20432007433.

It can be written as a sum of positive squares in 2 ways, for example, as 417348300625 + 144381760576 = 646025^2 + 379976^2 .

It is a cyclic number.

It is not a de Polignac number, because 561730061201 - 2¹⁴ = 561730044817 is a prime.

It is a super-4 number, since 4×561730061201⁴ (a number of 48 digits) contains 4444 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (561730061251) 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, 104291786 + ... + 104297171.

It is an arithmetic number, because the mean of its divisors is an integer number (140484663213).

Almost surely, 2^561730061201 is an apocalyptic number.

It is an amenable number.

561730061201 is a deficient number, since it is larger than the sum of its proper divisors (208591651).

561730061201 is a wasteful number, since it uses less digits than its factorization.

561730061201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208591650.

The product of its (nonzero) digits is 7560, while the sum is 32.

Adding to 561730061201 its reverse (102160037165), we get a palindrome (663890098366).

The spelling of 561730061201 in words is "five hundred sixty-one billion, seven hundred thirty million, sixty-one thousand, two hundred one".