5561145061145 has 8 divisors (see below), whose sum is σ = 6674246569800. Its totient is φ = 4448334384640.

The previous prime is 5561145061141. The next prime is 5561145061187. The reversal of 5561145061145 is 5411605411655.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 22328727184 + 5538816333961 = 149428^2 + 2353469^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5561145061145 - 2² = 5561145061141 is a prime.

It is a super-2 number, since 2×5561145061145² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5561145061096 and 5561145061105.

It is not an unprimeable number, because it can be changed into a prime (5561145061141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72665966 + ... + 72742455.

It is an arithmetic number, because the mean of its divisors is an integer number (834280821225).

Almost surely, 2^{5561145061145} is an apocalyptic number.

It is an amenable number.

5561145061145 is a deficient number, since it is larger than the sum of its proper divisors (1113101508655).

5561145061145 is a wasteful number, since it uses less digits than its factorization.

5561145061145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145416075.

The product of its (nonzero) digits is 360000, while the sum is 44.

The spelling of 5561145061145 in words is "five trillion, five hundred sixty-one billion, one hundred forty-five million, sixty-one thousand, one hundred forty-five".