158158958401 has 4 divisors (see below), whose sum is σ = 158164138692. Its totient is φ = 158153778112.

The previous prime is 158158958371. The next prime is 158158958417. The reversal of 158158958401 is 104859851851.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 138476271376 + 19682687025 = 372124^2 + 140295^2 .

It is a cyclic number.

It is not a de Polignac number, because 158158958401 - 2¹¹ = 158158956353 is a prime.

It is a super-2 number, since 2×158158958401² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158158958101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2544076 + ... + 2605501.

It is an arithmetic number, because the mean of its divisors is an integer number (39541034673).

Almost surely, 2^158158958401 is an apocalyptic number.

It is an amenable number.

158158958401 is a deficient number, since it is larger than the sum of its proper divisors (5180291).

158158958401 is an equidigital number, since it uses as much as digits as its factorization.

158158958401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5180290.

The product of its (nonzero) digits is 2304000, while the sum is 55.

The spelling of 158158958401 in words is "one hundred fifty-eight billion, one hundred fifty-eight million, nine hundred fifty-eight thousand, four hundred one".