105511906779 has 8 divisors (see below), whose sum is σ = 140868387600. Its totient is φ = 70248348576.

The previous prime is 105511906771. The next prime is 105511906811. The reversal of 105511906779 is 977609115501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 105511906779 - 2³ = 105511906771 is a prime.

It is a super-2 number, since 2×105511906779² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105511906771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23228004 + ... + 23232545.

It is an arithmetic number, because the mean of its divisors is an integer number (17608548450).

Almost surely, 2^105511906779 is an apocalyptic number.

105511906779 is a deficient number, since it is larger than the sum of its proper divisors (35356480821).

105511906779 is an equidigital number, since it uses as much as digits as its factorization.

105511906779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46461309.

The product of its (nonzero) digits is 595350, while the sum is 51.

The spelling of 105511906779 in words is "one hundred five billion, five hundred eleven million, nine hundred six thousand, seven hundred seventy-nine".