158600066 has 12 divisors (see below), whose sum is σ = 239506386. Its totient is φ = 78766080.

The previous prime is 158600059. The next prime is 158600069. The reversal of 158600066 is 660006851.

It can be written as a sum of positive squares in 3 ways, for example, as 158030041 + 570025 = 12571^2 + 755^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158600069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 247106 + ... + 247746.

Almost surely, 2^158600066 is an apocalyptic number.

158600066 is a deficient number, since it is larger than the sum of its proper divisors (80906320).

158600066 is an frugal number, since it uses more digits than its factorization.

158600066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1477 (or 836 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 158600066 is about 12593.6518135130. The cubic root of 158600066 is about 541.2955472660.

The spelling of 158600066 in words is "one hundred fifty-eight million, six hundred thousand, sixty-six".