298165663 has 2 divisors, whose sum is σ = 298165664. Its totient is φ = 298165662.

The previous prime is 298165643. The next prime is 298165691. The reversal of 298165663 is 366561892.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-298165663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (298165643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149082831 + 149082832.

It is an arithmetic number, because the mean of its divisors is an integer number (149082832).

Almost surely, 2^298165663 is an apocalyptic number.

298165663 is a deficient number, since it is larger than the sum of its proper divisors (1).

298165663 is an equidigital number, since it uses as much as digits as its factorization.

298165663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 46.

The square root of 298165663 is about 17267.4741349162. The cubic root of 298165663 is about 668.0657534746.

It can be divided in two parts, 2981 and 65663, that added together give a square (68644 = 262²).

The spelling of 298165663 in words is "two hundred ninety-eight million, one hundred sixty-five thousand, six hundred sixty-three".