111755640567937 has 2 divisors, whose sum is σ = 111755640567938. Its totient is φ = 111755640567936.

The previous prime is 111755640567931. The next prime is 111755640567953. The reversal of 111755640567937 is 739765046557111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78585228658561 + 33170411909376 = 8864831^2 + 5759376^2 .

It is a cyclic number.

It is not a de Polignac number, because 111755640567937 - 2²³ = 111755632179329 is a prime.

It is not a weakly prime, because it can be changed into another prime (111755640567931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55877820283968 + 55877820283969.

It is an arithmetic number, because the mean of its divisors is an integer number (55877820283969).

Almost surely, 2^{111755640567937} is an apocalyptic number.

It is an amenable number.

111755640567937 is a deficient number, since it is larger than the sum of its proper divisors (1).

111755640567937 is an equidigital number, since it uses as much as digits as its factorization.

111755640567937 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 166698000, while the sum is 67.

The spelling of 111755640567937 in words is "one hundred eleven trillion, seven hundred fifty-five billion, six hundred forty million, five hundred sixty-seven thousand, nine hundred thirty-seven".