61116834811 has 4 divisors (see below), whose sum is σ = 61119128800. Its totient is φ = 61114540824.

The previous prime is 61116834797. The next prime is 61116834907. The reversal of 61116834811 is 11843861116.

It is a happy number.

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 61116834811 - 2²¹ = 61114737659 is a prime.

It is a super-2 number, since 2×61116834811² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61116832811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1106556 + ... + 1160473.

It is an arithmetic number, because the mean of its divisors is an integer number (15279782200).

Almost surely, 2^61116834811 is an apocalyptic number.

61116834811 is a deficient number, since it is larger than the sum of its proper divisors (2293989).

61116834811 is a wasteful number, since it uses less digits than its factorization.

61116834811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2293988.

The product of its digits is 27648, while the sum is 40.

The spelling of 61116834811 in words is "sixty-one billion, one hundred sixteen million, eight hundred thirty-four thousand, eight hundred eleven".