66020414 has 16 divisors (see below), whose sum is σ = 104947920. Its totient is φ = 31093440.

The previous prime is 66020411. The next prime is 66020417. The reversal of 66020414 is 41402066.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (66020411) and next prime (66020417).

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 66020414.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66020411) 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, 11504 + ... + 16259.

It is an arithmetic number, because the mean of its divisors is an integer number (6559245).

Almost surely, 2^66020414 is an apocalyptic number.

66020414 is a deficient number, since it is larger than the sum of its proper divisors (38927506).

66020414 is a wasteful number, since it uses less digits than its factorization.

66020414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27835.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 66020414 is about 8125.2947023477. The cubic root of 66020414 is about 404.1656633600.

The spelling of 66020414 in words is "sixty-six million, twenty thousand, four hundred fourteen".