66420352463 has 2 divisors, whose sum is σ = 66420352464. Its totient is φ = 66420352462.

The previous prime is 66420352459. The next prime is 66420352541. The reversal of 66420352463 is 36425302466.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66420352463 - 2² = 66420352459 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66420352463.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66420352363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33210176231 + 33210176232.

It is an arithmetic number, because the mean of its divisors is an integer number (33210176232).

Almost surely, 2^66420352463 is an apocalyptic number.

66420352463 is a deficient number, since it is larger than the sum of its proper divisors (1).

66420352463 is an equidigital number, since it uses as much as digits as its factorization.

66420352463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 41.

The spelling of 66420352463 in words is "sixty-six billion, four hundred twenty million, three hundred fifty-two thousand, four hundred sixty-three".