561135331413 has 36 divisors (see below), whose sum is σ = 837730071360. Its totient is φ = 361931276880.

The previous prime is 561135331403. The next prime is 561135331433. The reversal of 561135331413 is 314133531165.

561135331413 is a `hidden beast` number, since 5 + 6 + 113 + 533 + 1 + 4 + 1 + 3 = 666.

It is not a de Polignac number, because 561135331413 - 2⁴ = 561135331397 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561135331403) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 57588820 + ... + 57598562.

It is an arithmetic number, because the mean of its divisors is an integer number (23270279760).

Almost surely, 2^561135331413 is an apocalyptic number.

It is an amenable number.

561135331413 is a deficient number, since it is larger than the sum of its proper divisors (276594739947).

561135331413 is a wasteful number, since it uses less digits than its factorization.

561135331413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16470 (or 16436 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

Adding to 561135331413 its reverse (314133531165), we get a palindrome (875268862578).

The spelling of 561135331413 in words is "five hundred sixty-one billion, one hundred thirty-five million, three hundred thirty-one thousand, four hundred thirteen".