8140561611 has 16 divisors (see below), whose sum is σ = 13358870784. Its totient is φ = 4293922464.

The previous prime is 8140561577. The next prime is 8140561619. The reversal of 8140561611 is 1161650418.

It is not a de Polignac number, because 8140561611 - 2²² = 8136367307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8140561619) 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 15 ways as a sum of consecutive naturals, for example, 14909181 + ... + 14909726.

It is an arithmetic number, because the mean of its divisors is an integer number (834929424).

Almost surely, 2^8140561611 is an apocalyptic number.

8140561611 is a deficient number, since it is larger than the sum of its proper divisors (5218309173).

8140561611 is a wasteful number, since it uses less digits than its factorization.

8140561611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29818930.

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 8140561611 is about 90225.0608811100. The cubic root of 8140561611 is about 2011.6455268236.

The spelling of 8140561611 in words is "eight billion, one hundred forty million, five hundred sixty-one thousand, six hundred eleven".