5561166723 has 8 divisors (see below), whose sum is σ = 8474158848. Its totient is φ = 3177809544.

The previous prime is 5561166683. The next prime is 5561166727. The reversal of 5561166723 is 3276611655.

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

It is not a de Polignac number, because 5561166723 - 2⁶ = 5561166659 is a prime.

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

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132408711 + ... + 132408752.

It is an arithmetic number, because the mean of its divisors is an integer number (1059269856).

Almost surely, 2^5561166723 is an apocalyptic number.

5561166723 is a deficient number, since it is larger than the sum of its proper divisors (2912992125).

5561166723 is a wasteful number, since it uses less digits than its factorization.

5561166723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264817473.

The product of its digits is 226800, while the sum is 42.

The square root of 5561166723 is about 74573.2306058950. The cubic root of 5561166723 is about 1771.6936901856.

The spelling of 5561166723 in words is "five billion, five hundred sixty-one million, one hundred sixty-six thousand, seven hundred twenty-three".