5561166724 has 6 divisors (see below), whose sum is σ = 9732041774. Its totient is φ = 2780583360.

The previous prime is 5561166683. The next prime is 5561166727. The reversal of 5561166724 is 4276611655.

It can be written as a sum of positive squares in only one way, i.e., 2890137600 + 2671029124 = 53760^2 + 51682^2 .

It is not an unprimeable number, because it can be changed into a prime (5561166727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 695145837 + ... + 695145844.

Almost surely, 2^5561166724 is an apocalyptic number.

It is an amenable number.

5561166724 is a deficient number, since it is larger than the sum of its proper divisors (4170875050).

5561166724 is a wasteful number, since it uses less digits than its factorization.

5561166724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390291685 (or 1390291683 counting only the distinct ones).

The product of its digits is 302400, while the sum is 43.

The square root of 5561166724 is about 74573.2306125999. The cubic root of 5561166724 is about 1771.6936902918.

The spelling of 5561166724 in words is "five billion, five hundred sixty-one million, one hundred sixty-six thousand, seven hundred twenty-four".