664110371 has 2 divisors, whose sum is σ = 664110372. Its totient is φ = 664110370.

The previous prime is 664110341. The next prime is 664110407. The reversal of 664110371 is 173011466.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 664110371 - 2²² = 659916067 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (664110301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332055185 + 332055186.

It is an arithmetic number, because the mean of its divisors is an integer number (332055186).

Almost surely, 2^664110371 is an apocalyptic number.

664110371 is a deficient number, since it is larger than the sum of its proper divisors (1).

664110371 is an equidigital number, since it uses as much as digits as its factorization.

664110371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 664110371 is about 25770.3389772040. The cubic root of 664110371 is about 872.4624695750.

The spelling of 664110371 in words is "six hundred sixty-four million, one hundred ten thousand, three hundred seventy-one".