158905892020 has 12 divisors (see below), whose sum is σ = 333702373284. Its totient is φ = 63562356800.

The previous prime is 158905892009. The next prime is 158905892039. The reversal of 158905892020 is 20298509851.

It can be written as a sum of positive squares in 2 ways, for example, as 62918698896 + 95987193124 = 250836^2 + 309818^2 .

It is a congruent number.

It is an unprimeable number.

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, 3972647281 + ... + 3972647320.

It is an arithmetic number, because the mean of its divisors is an integer number (27808531107).

Almost surely, 2^158905892020 is an apocalyptic number.

158905892020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158905892020 is an abundant number, since it is smaller than the sum of its proper divisors (174796481264).

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

158905892020 is a wasteful number, since it uses less digits than its factorization.

158905892020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7945294610 (or 7945294608 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 49.

The spelling of 158905892020 in words is "one hundred fifty-eight billion, nine hundred five million, eight hundred ninety-two thousand, twenty".