103111166555 has 4 divisors (see below), whose sum is σ = 123733399872. Its totient is φ = 82488933240.

The previous prime is 103111166551. The next prime is 103111166581. The reversal of 103111166555 is 555661111301.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 103111166555 - 2² = 103111166551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103111166551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10311116651 + ... + 10311116660.

It is an arithmetic number, because the mean of its divisors is an integer number (30933349968).

Almost surely, 2^103111166555 is an apocalyptic number.

103111166555 is a deficient number, since it is larger than the sum of its proper divisors (20622233317).

103111166555 is an equidigital number, since it uses as much as digits as its factorization.

103111166555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20622233316.

The product of its (nonzero) digits is 13500, while the sum is 35.

Adding to 103111166555 its reverse (555661111301), we get a palindrome (658772277856).

The spelling of 103111166555 in words is "one hundred three billion, one hundred eleven million, one hundred sixty-six thousand, five hundred fifty-five".