61111105061011 has 8 divisors (see below), whose sum is σ = 62242334809200. Its totient is φ = 59989755048960.

The previous prime is 61111105061009. The next prime is 61111105061047. The reversal of 61111105061011 is 11016050111116.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61111105061011 - 2¹ = 61111105061009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61111105091011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2469921550 + ... + 2469946291.

It is an arithmetic number, because the mean of its divisors is an integer number (7780291851150).

Almost surely, 2^{61111105061011} is an apocalyptic number.

61111105061011 is a deficient number, since it is larger than the sum of its proper divisors (1131229748189).

61111105061011 is a wasteful number, since it uses less digits than its factorization.

61111105061011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4939868069.

The product of its (nonzero) digits is 180, while the sum is 25.

Adding to 61111105061011 its reverse (11016050111116), we get a palindrome (72127155172127).

The spelling of 61111105061011 in words is "sixty-one trillion, one hundred eleven billion, one hundred five million, sixty-one thousand, eleven".