106165661 has 8 divisors (see below), whose sum is σ = 123041664. Its totient is φ = 89717040.

The previous prime is 106165643. The next prime is 106165699. The reversal of 106165661 is 166561601.

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

It is not a de Polignac number, because 106165661 - 2¹⁰ = 106164637 is a prime.

It is a super-2 number, since 2×106165661² = 22542295151133842, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106165061) 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 7 ways as a sum of consecutive naturals, for example, 106310 + ... + 107303.

It is an arithmetic number, because the mean of its divisors is an integer number (15380208).

Almost surely, 2^106165661 is an apocalyptic number.

It is an amenable number.

106165661 is a deficient number, since it is larger than the sum of its proper divisors (16876003).

106165661 is an equidigital number, since it uses as much as digits as its factorization.

106165661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213691.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 106165661 is about 10303.6722094601. The cubic root of 106165661 is about 473.5087651750.

The spelling of 106165661 in words is "one hundred six million, one hundred sixty-five thousand, six hundred sixty-one".