158212928340 has 72 divisors (see below), whose sum is σ = 479963608488. Its totient is φ = 42185625600.

The previous prime is 158212928329. The next prime is 158212928347. The reversal of 158212928340 is 43829212851.

158212928340 is a `hidden beast` number, since 1 + 5 + 8 + 212 + 92 + 8 + 340 = 666.

158212928340 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 4 ways, for example, as 20884874256 + 137328054084 = 144516^2 + 370578^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158212928347) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1866724 + ... + 1949636.

It is an arithmetic number, because the mean of its divisors is an integer number (6666161229).

Almost surely, 2^158212928340 is an apocalyptic number.

158212928340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158212928340 is an abundant number, since it is smaller than the sum of its proper divisors (321750680148).

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

158212928340 is a wasteful number, since it uses less digits than its factorization.

158212928340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93529 (or 93524 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 158212928340 in words is "one hundred fifty-eight billion, two hundred twelve million, nine hundred twenty-eight thousand, three hundred forty".