61116611611 has 32 divisors (see below), whose sum is σ = 71297510400. Its totient is φ = 51801029280.

The previous prime is 61116611593. The next prime is 61116611639. The reversal of 61116611611 is 11611661116.

It is not a de Polignac number, because 61116611611 - 2⁷ = 61116611483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61116611641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28046920 + ... + 28049098.

It is an arithmetic number, because the mean of its divisors is an integer number (2228047200).

Almost surely, 2^61116611611 is an apocalyptic number.

61116611611 is a deficient number, since it is larger than the sum of its proper divisors (10180898789).

61116611611 is a wasteful number, since it uses less digits than its factorization.

61116611611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4279.

The product of its digits is 1296, while the sum is 31.

The spelling of 61116611611 in words is "sixty-one billion, one hundred sixteen million, six hundred eleven thousand, six hundred eleven".