158002066 has 4 divisors (see below), whose sum is σ = 237003102. Its totient is φ = 79001032.

The previous prime is 158002057. The next prime is 158002093. The reversal of 158002066 is 660200851.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 80192025 + 77810041 = 8955^2 + 8821^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39500515 + ... + 39500518.

Almost surely, 2^158002066 is an apocalyptic number.

158002066 is a deficient number, since it is larger than the sum of its proper divisors (79001036).

158002066 is an equidigital number, since it uses as much as digits as its factorization.

158002066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79001035.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 158002066 is about 12569.8872707753. The cubic root of 158002066 is about 540.6143739032.

The spelling of 158002066 in words is "one hundred fifty-eight million, two thousand, sixty-six".