61065500611 has 4 divisors (see below), whose sum is σ = 61902014392. Its totient is φ = 60228986832.

The previous prime is 61065500537. The next prime is 61065500663. The reversal of 61065500611 is 11600556016.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61065500611 - 2³⁵ = 26705762243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61065530611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 418256781 + ... + 418256926.

It is an arithmetic number, because the mean of its divisors is an integer number (15475503598).

Almost surely, 2^61065500611 is an apocalyptic number.

61065500611 is a deficient number, since it is larger than the sum of its proper divisors (836513781).

61065500611 is an equidigital number, since it uses as much as digits as its factorization.

61065500611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836513780.

The product of its (nonzero) digits is 5400, while the sum is 31.

The spelling of 61065500611 in words is "sixty-one billion, sixty-five million, five hundred thousand, six hundred eleven".