66425141 has 2 divisors, whose sum is σ = 66425142. Its totient is φ = 66425140.

The previous prime is 66425123. The next prime is 66425179. The reversal of 66425141 is 14152466.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50822641 + 15602500 = 7129^2 + 3950^2 .

It is a cyclic number.

It is not a de Polignac number, because 66425141 - 2²² = 62230837 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66425041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33212570 + 33212571.

It is an arithmetic number, because the mean of its divisors is an integer number (33212571).

Almost surely, 2^66425141 is an apocalyptic number.

It is an amenable number.

66425141 is a deficient number, since it is larger than the sum of its proper divisors (1).

66425141 is an equidigital number, since it uses as much as digits as its factorization.

66425141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 29.

The square root of 66425141 is about 8150.1620229294. The cubic root of 66425141 is about 404.9898712094.

It can be divided in two parts, 66425 and 141, that added together give a palindrome (66566).

The spelling of 66425141 in words is "sixty-six million, four hundred twenty-five thousand, one hundred forty-one".