158936621982 has 16 divisors (see below), whose sum is σ = 317955576960. Its totient is φ = 52965151832.

The previous prime is 158936621957. The next prime is 158936621989. The reversal of 158936621982 is 289126639851.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158936621989) 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, 3405432 + ... + 3451787.

It is an arithmetic number, because the mean of its divisors is an integer number (19872223560).

Almost surely, 2^158936621982 is an apocalyptic number.

158936621982 is an abundant number, since it is smaller than the sum of its proper divisors (159018954978).

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

158936621982 is a wasteful number, since it uses less digits than its factorization.

158936621982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6861087.

The product of its digits is 11197440, while the sum is 60.

The spelling of 158936621982 in words is "one hundred fifty-eight billion, nine hundred thirty-six million, six hundred twenty-one thousand, nine hundred eighty-two".