158849970538 has 64 divisors (see below), whose sum is σ = 302679244800. Its totient is φ = 60955902720.

The previous prime is 158849970493. The next prime is 158849970541. The reversal of 158849970538 is 835079948851.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 252843 + ... + 617761.

It is an arithmetic number, because the mean of its divisors is an integer number (4729363200).

Almost surely, 2^158849970538 is an apocalyptic number.

158849970538 is a deficient number, since it is larger than the sum of its proper divisors (143829274262).

158849970538 is a wasteful number, since it uses less digits than its factorization.

158849970538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365035.

The product of its (nonzero) digits is 87091200, while the sum is 67.

The spelling of 158849970538 in words is "one hundred fifty-eight billion, eight hundred forty-nine million, nine hundred seventy thousand, five hundred thirty-eight".