66830527 has 2 divisors, whose sum is σ = 66830528. Its totient is φ = 66830526.

The previous prime is 66830503. The next prime is 66830549. The reversal of 66830527 is 72503866.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66830527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66830597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33415263 + 33415264.

It is an arithmetic number, because the mean of its divisors is an integer number (33415264).

Almost surely, 2^66830527 is an apocalyptic number.

66830527 is a deficient number, since it is larger than the sum of its proper divisors (1).

66830527 is an equidigital number, since it uses as much as digits as its factorization.

66830527 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 66830527 is about 8174.9940061140. The cubic root of 66830527 is about 405.8120717774.

The spelling of 66830527 in words is "sixty-six million, eight hundred thirty thousand, five hundred twenty-seven".