106983751681 has 4 divisors (see below), whose sum is σ = 107965254100. Its totient is φ = 106002249264.

The previous prime is 106983751663. The next prime is 106983751691. The reversal of 106983751681 is 186157389601.

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 2 ways, for example, as 66736972225 + 40246779456 = 258335^2 + 200616^2 .

It is a cyclic number.

It is not a de Polignac number, because 106983751681 - 2¹⁵ = 106983718913 is a prime.

It is a super-2 number, since 2×106983751681² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106983751601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 490751046 + ... + 490751263.

It is an arithmetic number, because the mean of its divisors is an integer number (26991313525).

Almost surely, 2^106983751681 is an apocalyptic number.

It is an amenable number.

106983751681 is a deficient number, since it is larger than the sum of its proper divisors (981502419).

106983751681 is an equidigital number, since it uses as much as digits as its factorization.

106983751681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981502418.

The product of its (nonzero) digits is 2177280, while the sum is 55.

The spelling of 106983751681 in words is "one hundred six billion, nine hundred eighty-three million, seven hundred fifty-one thousand, six hundred eighty-one".