106666511 has 8 divisors (see below), whose sum is σ = 123448320. Its totient is φ = 90270648.

The previous prime is 106666501. The next prime is 106666529. The reversal of 106666511 is 115666601.

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

It is a cyclic number.

It is not a de Polignac number, because 106666511 - 2¹⁴ = 106650127 is a prime.

It is a super-2 number, since 2×106666511² = 22755489137826242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106666501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95891 + ... + 96996.

It is an arithmetic number, because the mean of its divisors is an integer number (15431040).

Almost surely, 2^106666511 is an apocalyptic number.

106666511 is a deficient number, since it is larger than the sum of its proper divisors (16781809).

106666511 is an equidigital number, since it uses as much as digits as its factorization.

106666511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192973.

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

The square root of 106666511 is about 10327.9480537036. The cubic root of 106666511 is about 474.2522098945.

The spelling of 106666511 in words is "one hundred six million, six hundred sixty-six thousand, five hundred eleven".