158338865773 has 4 divisors (see below), whose sum is σ = 172733308128. Its totient is φ = 143944423420.

The previous prime is 158338865693. The next prime is 158338865803. The reversal of 158338865773 is 377568833851.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 158338865773 - 2³⁷ = 20899912301 is a prime.

It is a super-2 number, since 2×158338865773² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158338865173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7197221161 + ... + 7197221182.

It is an arithmetic number, because the mean of its divisors is an integer number (43183327032).

Almost surely, 2^158338865773 is an apocalyptic number.

It is an amenable number.

158338865773 is a deficient number, since it is larger than the sum of its proper divisors (14394442355).

158338865773 is a wasteful number, since it uses less digits than its factorization.

158338865773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14394442354.

The product of its digits is 101606400, while the sum is 64.

The spelling of 158338865773 in words is "one hundred fifty-eight billion, three hundred thirty-eight million, eight hundred sixty-five thousand, seven hundred seventy-three".