657116027 has 2 divisors, whose sum is σ = 657116028. Its totient is φ = 657116026.

The previous prime is 657115933. The next prime is 657116029. The reversal of 657116027 is 720611756.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 657116027 - 2¹⁰ = 657115003 is a prime.

Together with 657116029, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (657116029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328558013 + 328558014.

It is an arithmetic number, because the mean of its divisors is an integer number (328558014).

Almost surely, 2^657116027 is an apocalyptic number.

657116027 is a deficient number, since it is larger than the sum of its proper divisors (1).

657116027 is an equidigital number, since it uses as much as digits as its factorization.

657116027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 657116027 is about 25634.2744582327. The cubic root of 657116027 is about 869.3887576904.

The spelling of 657116027 in words is "six hundred fifty-seven million, one hundred sixteen thousand, twenty-seven".