66106111 has 8 divisors (see below), whose sum is σ = 71066880. Its totient is φ = 61293528.

The previous prime is 66106091. The next prime is 66106123. The reversal of 66106111 is 11160166.

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 66106111 - 2⁷ = 66105983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66106151) 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, 36121 + ... + 37906.

It is an arithmetic number, because the mean of its divisors is an integer number (8883360).

Almost surely, 2^66106111 is an apocalyptic number.

66106111 is a deficient number, since it is larger than the sum of its proper divisors (4960769).

66106111 is a wasteful number, since it uses less digits than its factorization.

66106111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74093.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 66106111 is about 8130.5664624305. The cubic root of 66106111 is about 404.3404618674.

Adding to 66106111 its reverse (11160166), we get a palindrome (77266277).

It can be divided in two parts, 6610 and 6111, that added together give a palindrome (12721).

The spelling of 66106111 in words is "sixty-six million, one hundred six thousand, one hundred eleven".