20102100000008 has 16 divisors (see below), whose sum is σ = 40590778846380. Its totient is φ = 9277892307648.

The previous prime is 20102099999981. The next prime is 20102100000061. The reversal of 20102100000008 is 80000000120102.

It can be written as a sum of positive squares in 2 ways, for example, as 16250073575044 + 3852026424964 = 4031138^2 + 1962658^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20102099999938 and 20102100000001.

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, 96644711435 + ... + 96644711642.

Almost surely, 2^{20102100000008} is an apocalyptic number.

It is an amenable number.

20102100000008 is an abundant number, since it is smaller than the sum of its proper divisors (20488678846372).

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

20102100000008 is a wasteful number, since it uses less digits than its factorization.

20102100000008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193289423096 (or 193289423092 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The spelling of 20102100000008 in words is "twenty trillion, one hundred two billion, one hundred million, eight", and thus it is an aban number.