105655717685 has 16 divisors (see below), whose sum is σ = 144943324032. Its totient is φ = 72427608000.

The previous prime is 105655717639. The next prime is 105655717709. The reversal of 105655717685 is 586717556501.

It is not a de Polignac number, because 105655717685 - 2¹⁸ = 105655455541 is a prime.

It is a super-2 number, since 2×105655717685² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 105655717685.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 341711 + ... + 572780.

It is an arithmetic number, because the mean of its divisors is an integer number (9058957752).

Almost surely, 2^105655717685 is an apocalyptic number.

It is an amenable number.

105655717685 is a deficient number, since it is larger than the sum of its proper divisors (39287606347).

105655717685 is an equidigital number, since it uses as much as digits as its factorization.

105655717685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917804.

The product of its (nonzero) digits is 8820000, while the sum is 56.

The spelling of 105655717685 in words is "one hundred five billion, six hundred fifty-five million, seven hundred seventeen thousand, six hundred eighty-five".