66351463 has 2 divisors, whose sum is σ = 66351464. Its totient is φ = 66351462.

The previous prime is 66351437. The next prime is 66351473. The reversal of 66351463 is 36415366.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66351463 - 2⁵ = 66351431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66351413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33175731 + 33175732.

It is an arithmetic number, because the mean of its divisors is an integer number (33175732).

Almost surely, 2^66351463 is an apocalyptic number.

66351463 is a deficient number, since it is larger than the sum of its proper divisors (1).

66351463 is an equidigital number, since it uses as much as digits as its factorization.

66351463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 34.

The square root of 66351463 is about 8145.6407360011. The cubic root of 66351463 is about 404.8400791157.

The spelling of 66351463 in words is "sixty-six million, three hundred fifty-one thousand, four hundred sixty-three".