666315283 has 2 divisors, whose sum is σ = 666315284. Its totient is φ = 666315282.

The previous prime is 666315269. The next prime is 666315319. The reversal of 666315283 is 382513666.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 666315283 - 2¹³ = 666307091 is a prime.

It is not a weakly prime, because it can be changed into another prime (666315253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333157641 + 333157642.

It is an arithmetic number, because the mean of its divisors is an integer number (333157642).

Almost surely, 2^666315283 is an apocalyptic number.

666315283 is a deficient number, since it is larger than the sum of its proper divisors (1).

666315283 is an equidigital number, since it uses as much as digits as its factorization.

666315283 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 40.

The square root of 666315283 is about 25813.0835624107. The cubic root of 666315283 is about 873.4269568096.

The spelling of 666315283 in words is "six hundred sixty-six million, three hundred fifteen thousand, two hundred eighty-three".