66536383 has 2 divisors, whose sum is σ = 66536384. Its totient is φ = 66536382.

The previous prime is 66536329. The next prime is 66536473. The reversal of 66536383 is 38363566.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66536383 - 2²⁵ = 32981951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66536683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33268191 + 33268192.

It is an arithmetic number, because the mean of its divisors is an integer number (33268192).

Almost surely, 2^66536383 is an apocalyptic number.

66536383 is a deficient number, since it is larger than the sum of its proper divisors (1).

66536383 is an equidigital number, since it uses as much as digits as its factorization.

66536383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 40.

The square root of 66536383 is about 8156.9836949696. The cubic root of 66536383 is about 405.2158235949.

The spelling of 66536383 in words is "sixty-six million, five hundred thirty-six thousand, three hundred eighty-three".