66242083 has 2 divisors, whose sum is σ = 66242084. Its totient is φ = 66242082.

The previous prime is 66242063. The next prime is 66242087. The reversal of 66242083 is 38024266.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66242083 - 2¹³ = 66233891 is a prime.

It is not a weakly prime, because it can be changed into another prime (66242087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33121041 + 33121042.

It is an arithmetic number, because the mean of its divisors is an integer number (33121042).

Almost surely, 2^66242083 is an apocalyptic number.

66242083 is a deficient number, since it is larger than the sum of its proper divisors (1).

66242083 is an equidigital number, since it uses as much as digits as its factorization.

66242083 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 66242083 is about 8138.9239460754. The cubic root of 66242083 is about 404.6174979260.

The spelling of 66242083 in words is "sixty-six million, two hundred forty-two thousand, eighty-three".