106439686855 has 16 divisors (see below), whose sum is σ = 127914811200. Its totient is φ = 85027041792.

The previous prime is 106439686853. The next prime is 106439686909. The reversal of 106439686855 is 558686934601.

It is a cyclic number.

It is not a de Polignac number, because 106439686855 - 2¹ = 106439686853 is a prime.

It is a super-2 number, since 2×106439686855² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 106439686793 and 106439686802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106439686853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19574197 + ... + 19579633.

It is an arithmetic number, because the mean of its divisors is an integer number (7994675700).

Almost surely, 2^106439686855 is an apocalyptic number.

106439686855 is a deficient number, since it is larger than the sum of its proper divisors (21475124345).

106439686855 is an equidigital number, since it uses as much as digits as its factorization.

106439686855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10458.

The product of its (nonzero) digits is 37324800, while the sum is 61.

The spelling of 106439686855 in words is "one hundred six billion, four hundred thirty-nine million, six hundred eighty-six thousand, eight hundred fifty-five".