61104156011 has 2 divisors, whose sum is σ = 61104156012. Its totient is φ = 61104156010.

The previous prime is 61104155993. The next prime is 61104156013. The reversal of 61104156011 is 11065140116.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61104156011 is a prime.

Together with 61104156013, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (61104156013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30552078005 + 30552078006.

It is an arithmetic number, because the mean of its divisors is an integer number (30552078006).

Almost surely, 2^61104156011 is an apocalyptic number.

61104156011 is a deficient number, since it is larger than the sum of its proper divisors (1).

61104156011 is an equidigital number, since it uses as much as digits as its factorization.

61104156011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 26.

Adding to 61104156011 its reverse (11065140116), we get a palindrome (72169296127).

The spelling of 61104156011 in words is "sixty-one billion, one hundred four million, one hundred fifty-six thousand, eleven".