106720225945 has 4 divisors (see below), whose sum is σ = 128064271140. Its totient is φ = 85376180752.

The previous prime is 106720225921. The next prime is 106720225949. The reversal of 106720225945 is 549522027601.

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 26123287129 + 80596938816 = 161627^2 + 283896^2 .

It is a cyclic number.

It is not a de Polignac number, because 106720225945 - 2²¹ = 106718128793 is a prime.

It is a super-2 number, since 2×106720225945² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106720225949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10672022590 + ... + 10672022599.

It is an arithmetic number, because the mean of its divisors is an integer number (32016067785).

Almost surely, 2^106720225945 is an apocalyptic number.

It is an amenable number.

106720225945 is a deficient number, since it is larger than the sum of its proper divisors (21344045195).

106720225945 is an equidigital number, since it uses as much as digits as its factorization.

106720225945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21344045194.

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 106720225945 in words is "one hundred six billion, seven hundred twenty million, two hundred twenty-five thousand, nine hundred forty-five".