1657132163 has 2 divisors, whose sum is σ = 1657132164. Its totient is φ = 1657132162.

The previous prime is 1657132121. The next prime is 1657132223. The reversal of 1657132163 is 3612317561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1657132163 - 2⁸ = 1657131907 is a prime.

It is not a weakly prime, because it can be changed into another prime (1657134163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 828566081 + 828566082.

It is an arithmetic number, because the mean of its divisors is an integer number (828566082).

Almost surely, 2^1657132163 is an apocalyptic number.

1657132163 is a deficient number, since it is larger than the sum of its proper divisors (1).

1657132163 is an equidigital number, since it uses as much as digits as its factorization.

1657132163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 35.

The square root of 1657132163 is about 40707.8882159220. Note that the first 3 decimals coincide. The cubic root of 1657132163 is about 1183.3658956501.

The spelling of 1657132163 in words is "one billion, six hundred fifty-seven million, one hundred thirty-two thousand, one hundred sixty-three".