158206158 has 24 divisors (see below), whose sum is σ = 373942296. Its totient is φ = 47941200.

The previous prime is 158206109. The next prime is 158206189. The reversal of 158206158 is 851602851.

158206158 is a `hidden beast` number, since 15 + 8 + 20 + 615 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 399313 + ... + 399708.

It is an arithmetic number, because the mean of its divisors is an integer number (15580929).

Almost surely, 2^158206158 is an apocalyptic number.

158206158 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

158206158 is an abundant number, since it is smaller than the sum of its proper divisors (215736138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

158206158 is a wasteful number, since it uses less digits than its factorization.

158206158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799040 (or 799037 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 36.

The square root of 158206158 is about 12578.0029416438. The cubic root of 158206158 is about 540.8470451142.

The spelling of 158206158 in words is "one hundred fifty-eight million, two hundred six thousand, one hundred fifty-eight".