6645425323 has 2 divisors, whose sum is σ = 6645425324. Its totient is φ = 6645425322.

The previous prime is 6645425291. The next prime is 6645425393. The reversal of 6645425323 is 3235245466.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6645425323 - 2⁵ = 6645425291 is a prime.

It is not a weakly prime, because it can be changed into another prime (6645425393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3322712661 + 3322712662.

It is an arithmetic number, because the mean of its divisors is an integer number (3322712662).

Almost surely, 2^6645425323 is an apocalyptic number.

6645425323 is a deficient number, since it is larger than the sum of its proper divisors (1).

6645425323 is an equidigital number, since it uses as much as digits as its factorization.

6645425323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 518400, while the sum is 40.

The square root of 6645425323 is about 81519.4781815978. The cubic root of 6645425323 is about 1880.0710440747.

The spelling of 6645425323 in words is "six billion, six hundred forty-five million, four hundred twenty-five thousand, three hundred twenty-three".