158206663 has 2 divisors, whose sum is σ = 158206664. Its totient is φ = 158206662.

The previous prime is 158206621. The next prime is 158206679. The reversal of 158206663 is 366602851.

158206663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 158206663 - 2²¹ = 156109511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158206693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79103331 + 79103332.

It is an arithmetic number, because the mean of its divisors is an integer number (79103332).

Almost surely, 2^158206663 is an apocalyptic number.

158206663 is a deficient number, since it is larger than the sum of its proper divisors (1).

158206663 is an equidigital number, since it uses as much as digits as its factorization.

158206663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 158206663 is about 12578.0230163567. The cubic root of 158206663 is about 540.8476205816.

The spelling of 158206663 in words is "one hundred fifty-eight million, two hundred six thousand, six hundred sixty-three".