111100016061 has 12 divisors (see below), whose sum is σ = 160554648540. Its totient is φ = 74031209280.

The previous prime is 111100016057. The next prime is 111100016141. The reversal of 111100016061 is 160610001111.

It can be written as a sum of positive squares in 2 ways, for example, as 95898605625 + 15201410436 = 309675^2 + 123294^2 .

It is not a de Polignac number, because 111100016061 - 2² = 111100016057 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111100016051) 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 11 ways as a sum of consecutive naturals, for example, 2935830 + ... + 2973431.

It is an arithmetic number, because the mean of its divisors is an integer number (13379554045).

Almost surely, 2^111100016061 is an apocalyptic number.

It is an amenable number.

111100016061 is a deficient number, since it is larger than the sum of its proper divisors (49454632479).

111100016061 is a wasteful number, since it uses less digits than its factorization.

111100016061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5911356 (or 5911353 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 111100016061 its reverse (160610001111), we get a palindrome (271710017172).

The spelling of 111100016061 in words is "one hundred eleven billion, one hundred million, sixteen thousand, sixty-one".