66062165 has 8 divisors (see below), whose sum is σ = 85372728. Its totient is φ = 48784320.

The previous prime is 66062159. The next prime is 66062167. The reversal of 66062165 is 56126066.

66062165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 662596 + 65399569 = 814^2 + 8087^2 .

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

It is not a de Polignac number, because 66062165 - 2¹⁴ = 66045781 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 (66062167) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 508106 + ... + 508235.

It is an arithmetic number, because the mean of its divisors is an integer number (10671591).

Almost surely, 2^66062165 is an apocalyptic number.

66062165 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

66062165 is a deficient number, since it is larger than the sum of its proper divisors (19310563).

66062165 is a wasteful number, since it uses less digits than its factorization.

66062165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016359.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 66062165 is about 8127.8634954089. The cubic root of 66062165 is about 404.2508428964.

The spelling of 66062165 in words is "sixty-six million, sixty-two thousand, one hundred sixty-five".