561613133042 has 32 divisors (see below), whose sum is σ = 914953158000. Its totient is φ = 257003198208.

The previous prime is 561613133027. The next prime is 561613133047. The reversal of 561613133042 is 240331316165.

It can be written as a sum of positive squares in 8 ways, for example, as 127649712961 + 433963420081 = 357281^2 + 658759^2 .

It is a super-2 number, since 2×561613133042² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 561613132993 and 561613133011.

It is not an unprimeable number, because it can be changed into a prime (561613133047) 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, 2027684 + ... + 2287952.

Almost surely, 2^561613133042 is an apocalyptic number.

561613133042 is a deficient number, since it is larger than the sum of its proper divisors (353340024958).

561613133042 is a wasteful number, since it uses less digits than its factorization.

561613133042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260990.

The product of its (nonzero) digits is 38880, while the sum is 35.

The spelling of 561613133042 in words is "five hundred sixty-one billion, six hundred thirteen million, one hundred thirty-three thousand, forty-two".