664845182303 has 2 divisors, whose sum is σ = 664845182304. Its totient is φ = 664845182302.

The previous prime is 664845182291. The next prime is 664845182317. The reversal of 664845182303 is 303281548466.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-664845182303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (664845182383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332422591151 + 332422591152.

It is an arithmetic number, because the mean of its divisors is an integer number (332422591152).

Almost surely, 2^664845182303 is an apocalyptic number.

664845182303 is a deficient number, since it is larger than the sum of its proper divisors (1).

664845182303 is an equidigital number, since it uses as much as digits as its factorization.

664845182303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3317760, while the sum is 50.

The spelling of 664845182303 in words is "six hundred sixty-four billion, eight hundred forty-five million, one hundred eighty-two thousand, three hundred three".