158367685120 has 80 divisors (see below), whose sum is σ = 380251186920. Its totient is φ = 63257001984.

The previous prime is 158367685081. The next prime is 158367685129. The reversal of 158367685120 is 21586763851.

It can be written as a sum of positive squares in 4 ways, for example, as 67858166016 + 90509519104 = 260496^2 + 300848^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (158367685129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1771414 + ... + 1858666.

Almost surely, 2^158367685120 is an apocalyptic number.

158367685120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 158367685120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190125593460).

158367685120 is an abundant number, since it is smaller than the sum of its proper divisors (221883501800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

158367685120 is an frugal number, since it uses more digits than its factorization.

158367685120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87985 (or 87969 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 52.

The spelling of 158367685120 in words is "one hundred fifty-eight billion, three hundred sixty-seven million, six hundred eighty-five thousand, one hundred twenty".