20081554882 has 8 divisors (see below), whose sum is σ = 30126015756. Its totient is φ = 10039549632.

The previous prime is 20081554873. The next prime is 20081554891. The reversal of 20081554882 is 28845518002.

It is an interprime number because it is at equal distance from previous prime (20081554873) and next prime (20081554891).

It can be written as a sum of positive squares in 2 ways, for example, as 20055941161 + 25613721 = 141619^2 + 5061^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 593323 + ... + 626254.

Almost surely, 2^20081554882 is an apocalyptic number.

20081554882 is a deficient number, since it is larger than the sum of its proper divisors (10044460874).

20081554882 is a wasteful number, since it uses less digits than its factorization.

20081554882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227812.

The product of its (nonzero) digits is 204800, while the sum is 43.

The spelling of 20081554882 in words is "twenty billion, eighty-one million, five hundred fifty-four thousand, eight hundred eighty-two".