111960660001 has 2 divisors, whose sum is σ = 111960660002. Its totient is φ = 111960660000.

The previous prime is 111960659969. The next prime is 111960660059. The reversal of 111960660001 is 100066069111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59633640000 + 52327020001 = 244200^2 + 228751^2 .

It is a cyclic number.

It is not a de Polignac number, because 111960660001 - 2⁵ = 111960659969 is a prime.

It is not a weakly prime, because it can be changed into another prime (111961660001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55980330000 + 55980330001.

It is an arithmetic number, because the mean of its divisors is an integer number (55980330001).

Almost surely, 2^111960660001 is an apocalyptic number.

It is an amenable number.

111960660001 is a deficient number, since it is larger than the sum of its proper divisors (1).

111960660001 is an equidigital number, since it uses as much as digits as its factorization.

111960660001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 31.

The spelling of 111960660001 in words is "one hundred eleven billion, nine hundred sixty million, six hundred sixty thousand, one".