158320066 has 16 divisors (see below), whose sum is σ = 244094400. Its totient is φ = 76971888.

The previous prime is 158320039. The next prime is 158320073. The reversal of 158320066 is 660023851.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15675 + ... + 23713.

It is an arithmetic number, because the mean of its divisors is an integer number (15255900).

Almost surely, 2^158320066 is an apocalyptic number.

158320066 is a deficient number, since it is larger than the sum of its proper divisors (85774334).

158320066 is a wasteful number, since it uses less digits than its factorization.

158320066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8313.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 158320066 is about 12582.5301907049. The cubic root of 158320066 is about 540.9768167706.

The spelling of 158320066 in words is "one hundred fifty-eight million, three hundred twenty thousand, sixty-six".