106665626 has 4 divisors (see below), whose sum is σ = 159998442. Its totient is φ = 53332812.

The previous prime is 106665623. The next prime is 106665631. The reversal of 106665626 is 626566601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 626566601 = 2909 ⋅215389.

It can be written as a sum of positive squares in only one way, i.e., 106110601 + 555025 = 10301^2 + 745^2 .

It is a super-2 number, since 2×106665626² = 22755111539943752, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 106665626.

It is not an unprimeable number, because it can be changed into a prime (106665623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26666405 + ... + 26666408.

Almost surely, 2^106665626 is an apocalyptic number.

106665626 is a deficient number, since it is larger than the sum of its proper divisors (53332816).

106665626 is an equidigital number, since it uses as much as digits as its factorization.

106665626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53332815.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 106665626 is about 10327.9052087052. The cubic root of 106665626 is about 474.2508982852.

The spelling of 106665626 in words is "one hundred six million, six hundred sixty-five thousand, six hundred twenty-six".