111417766355551 has 2 divisors, whose sum is σ = 111417766355552. Its totient is φ = 111417766355550.

The previous prime is 111417766355543. The next prime is 111417766355563. The reversal of 111417766355551 is 155553667714111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111417766355551 - 2³ = 111417766355543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111417766355251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55708883177775 + 55708883177776.

It is an arithmetic number, because the mean of its divisors is an integer number (55708883177776).

Almost surely, 2^{111417766355551} is an apocalyptic number.

111417766355551 is a deficient number, since it is larger than the sum of its proper divisors (1).

111417766355551 is an equidigital number, since it uses as much as digits as its factorization.

111417766355551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13230000, while the sum is 58.

The spelling of 111417766355551 in words is "one hundred eleven trillion, four hundred seventeen billion, seven hundred sixty-six million, three hundred fifty-five thousand, five hundred fifty-one".