663115157 has 2 divisors, whose sum is σ = 663115158. Its totient is φ = 663115156.

The previous prime is 663115127. The next prime is 663115213. The reversal of 663115157 is 751511366.

663115157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 663114001 + 1156 = 25751^2 + 34^2 .

It is a cyclic number.

It is not a de Polignac number, because 663115157 - 2⁸ = 663114901 is a prime.

It is a super-2 number, since 2×663115157² = 879443422886269298, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (663115127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331557578 + 331557579.

It is an arithmetic number, because the mean of its divisors is an integer number (331557579).

Almost surely, 2^663115157 is an apocalyptic number.

It is an amenable number.

663115157 is a deficient number, since it is larger than the sum of its proper divisors (1).

663115157 is an equidigital number, since it uses as much as digits as its factorization.

663115157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18900, while the sum is 35.

The square root of 663115157 is about 25751.0224457205. The cubic root of 663115157 is about 872.0264371561.

The spelling of 663115157 in words is "six hundred sixty-three million, one hundred fifteen thousand, one hundred fifty-seven".