66106061 has 8 divisors (see below), whose sum is σ = 75875904. Its totient is φ = 56417760.

The previous prime is 66106039. The next prime is 66106067. The reversal of 66106061 is 16060166.

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

It is not a de Polignac number, because 66106061 - 2¹⁰ = 66105037 is a prime.

It is a super-2 number, since 2×66106061² = 8740022601871442, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 66106061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66106067) 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, 18635 + ... + 21896.

It is an arithmetic number, because the mean of its divisors is an integer number (9484488).

Almost surely, 2^66106061 is an apocalyptic number.

It is an amenable number.

66106061 is a deficient number, since it is larger than the sum of its proper divisors (9769843).

66106061 is a wasteful number, since it uses less digits than its factorization.

66106061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40771.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 66106061 is about 8130.5633876134. The cubic root of 66106061 is about 404.3403599250.

The spelling of 66106061 in words is "sixty-six million, one hundred six thousand, sixty-one".