5561155011 has 8 divisors (see below), whose sum is σ = 7805129920. Its totient is φ = 3512308392.

The previous prime is 5561154997. The next prime is 5561155013. The reversal of 5561155011 is 1105511655.

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

It is not a de Polignac number, because 5561155011 - 2⁵ = 5561154979 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5561155011.

It is not an unprimeable number, because it can be changed into a prime (5561155013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48782005 + ... + 48782118.

It is an arithmetic number, because the mean of its divisors is an integer number (975641240).

Almost surely, 2^5561155011 is an apocalyptic number.

5561155011 is a deficient number, since it is larger than the sum of its proper divisors (2243974909).

5561155011 is a wasteful number, since it uses less digits than its factorization.

5561155011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97564145.

The product of its (nonzero) digits is 3750, while the sum is 30.

The square root of 5561155011 is about 74573.1520790157. The cubic root of 5561155011 is about 1771.6924464363.

Adding to 5561155011 its reverse (1105511655), we get a palindrome (6666666666).

The spelling of 5561155011 in words is "five billion, five hundred sixty-one million, one hundred fifty-five thousand, eleven".