106891969890106 has 4 divisors (see below), whose sum is σ = 160337954835162. Its totient is φ = 53445984945052.

The previous prime is 106891969890049. The next prime is 106891969890107. The reversal of 106891969890106 is 601098969198601.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 103743208364481 + 3148761525625 = 10185441^2 + 1774475^2 .

It is a super-2 number, since 2×106891969890106² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106891969890107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26722992472525 + ... + 26722992472528.

Almost surely, 2^{106891969890106} is an apocalyptic number.

106891969890106 is a deficient number, since it is larger than the sum of its proper divisors (53445984945056).

106891969890106 is an equidigital number, since it uses as much as digits as its factorization.

106891969890106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53445984945055.

The product of its (nonzero) digits is 90699264, while the sum is 73.

The spelling of 106891969890106 in words is "one hundred six trillion, eight hundred ninety-one billion, nine hundred sixty-nine million, eight hundred ninety thousand, one hundred six".