106811666 has 8 divisors (see below), whose sum is σ = 172541964. Its totient is φ = 49297680.

The previous prime is 106811657. The next prime is 106811681. The reversal of 106811666 is 666118601.

It can be written as a sum of positive squares in 2 ways, for example, as 99900025 + 6911641 = 9995^2 + 2629^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×106811666² = 22817463987391112, which contains 22 as substring.

It is an unprimeable number.

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, 2054045 + ... + 2054096.

Almost surely, 2^106811666 is an apocalyptic number.

106811666 is a deficient number, since it is larger than the sum of its proper divisors (65730298).

106811666 is a wasteful number, since it uses less digits than its factorization.

106811666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4108156.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 106811666 is about 10334.9729559395. The cubic root of 106811666 is about 474.4672379476.

The spelling of 106811666 in words is "one hundred six million, eight hundred eleven thousand, six hundred sixty-six".