158085637812 has 18 divisors (see below), whose sum is σ = 399605362338. Its totient is φ = 52695212592.

The previous prime is 158085637807. The next prime is 158085637841. The reversal of 158085637812 is 218736580851.

158085637812 is a `hidden beast` number, since 1 + 5 + 8 + 0 + 8 + 563 + 78 + 1 + 2 = 666.

158085637812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 86969548836 + 71116088976 = 294906^2 + 266676^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2195633823 + ... + 2195633894.

Almost surely, 2^158085637812 is an apocalyptic number.

158085637812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

158085637812 is an abundant number, since it is smaller than the sum of its proper divisors (241519724526).

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

158085637812 is a wasteful number, since it uses less digits than its factorization.

158085637812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4391267727 (or 4391267722 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 54.

The spelling of 158085637812 in words is "one hundred fifty-eight billion, eighty-five million, six hundred thirty-seven thousand, eight hundred twelve".