66322351 has 2 divisors, whose sum is σ = 66322352. Its totient is φ = 66322350.

The previous prime is 66322349. The next prime is 66322381. The reversal of 66322351 is 15322366.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66322351 - 2¹ = 66322349 is a prime.

Together with 66322349, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66322301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33161175 + 33161176.

It is an arithmetic number, because the mean of its divisors is an integer number (33161176).

Almost surely, 2^66322351 is an apocalyptic number.

66322351 is a deficient number, since it is larger than the sum of its proper divisors (1).

66322351 is an equidigital number, since it uses as much as digits as its factorization.

66322351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 28.

The square root of 66322351 is about 8143.8535718663. The cubic root of 66322351 is about 404.7808619914.

The spelling of 66322351 in words is "sixty-six million, three hundred twenty-two thousand, three hundred fifty-one".