106657120116605 has 4 divisors (see below), whose sum is σ = 127988544139932. Its totient is φ = 85325696093280.

The previous prime is 106657120116583. The next prime is 106657120116641. The reversal of 106657120116605 is 506611021756601.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 68097963118201 + 38559156998404 = 8252149^2 + 6209602^2 .

It is not a de Polignac number, because 106657120116605 - 2¹² = 106657120112509 is a prime.

It is a super-2 number, since 2×106657120116605² (a number of 29 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 106657120116605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10665712011656 + ... + 10665712011665.

It is an arithmetic number, because the mean of its divisors is an integer number (31997136034983).

Almost surely, 2^{106657120116605} is an apocalyptic number.

It is an amenable number.

106657120116605 is a deficient number, since it is larger than the sum of its proper divisors (21331424023327).

106657120116605 is an equidigital number, since it uses as much as digits as its factorization.

106657120116605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21331424023326.

The product of its (nonzero) digits is 453600, while the sum is 47.

The spelling of 106657120116605 in words is "one hundred six trillion, six hundred fifty-seven billion, one hundred twenty million, one hundred sixteen thousand, six hundred five".