105516185903 has 2 divisors, whose sum is σ = 105516185904. Its totient is φ = 105516185902.

The previous prime is 105516185899. The next prime is 105516185963. The reversal of 105516185903 is 309581615501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105516185903 - 2² = 105516185899 is a prime.

It is a super-2 number, since 2×105516185903² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105516185963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52758092951 + 52758092952.

It is an arithmetic number, because the mean of its divisors is an integer number (52758092952).

Almost surely, 2^105516185903 is an apocalyptic number.

105516185903 is a deficient number, since it is larger than the sum of its proper divisors (1).

105516185903 is an equidigital number, since it uses as much as digits as its factorization.

105516185903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162000, while the sum is 44.

The spelling of 105516185903 in words is "one hundred five billion, five hundred sixteen million, one hundred eighty-five thousand, nine hundred three".