158263663 has 2 divisors, whose sum is σ = 158263664. Its totient is φ = 158263662.

The previous prime is 158263639. The next prime is 158263681. The reversal of 158263663 is 366362851.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 158263663 - 2⁹ = 158263151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158263603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79131831 + 79131832.

It is an arithmetic number, because the mean of its divisors is an integer number (79131832).

Almost surely, 2^158263663 is an apocalyptic number.

158263663 is a deficient number, since it is larger than the sum of its proper divisors (1).

158263663 is an equidigital number, since it uses as much as digits as its factorization.

158263663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 40.

The square root of 158263663 is about 12580.2886691840. The cubic root of 158263663 is about 540.9125664614.

The spelling of 158263663 in words is "one hundred fifty-eight million, two hundred sixty-three thousand, six hundred sixty-three".