105551776511 has 4 divisors (see below), whose sum is σ = 108006469032. Its totient is φ = 103097083992.

The previous prime is 105551776501. The next prime is 105551776537. The reversal of 105551776511 is 115677155501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 115677155501 = 43 ⋅2690166407.

It is a cyclic number.

It is not a de Polignac number, because 105551776511 - 2²² = 105547582207 is a prime.

It is a super-2 number, since 2×105551776511² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105551776501) 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 in 3 ways as a sum of consecutive naturals, for example, 1227346196 + ... + 1227346281.

It is an arithmetic number, because the mean of its divisors is an integer number (27001617258).

Almost surely, 2^105551776511 is an apocalyptic number.

105551776511 is a deficient number, since it is larger than the sum of its proper divisors (2454692521).

105551776511 is an equidigital number, since it uses as much as digits as its factorization.

105551776511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2454692520.

The product of its (nonzero) digits is 183750, while the sum is 44.

The spelling of 105551776511 in words is "one hundred five billion, five hundred fifty-one million, seven hundred seventy-six thousand, five hundred eleven".