20011001100008 has 8 divisors (see below), whose sum is σ = 37520627062530. Its totient is φ = 10005500550000.

The previous prime is 20011001099993. The next prime is 20011001100029. The reversal of 20011001100008 is 80000110011002.

It can be written as a sum of positive squares in only one way, i.e., 17158003097284 + 2852998002724 = 4142222^2 + 1689082^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 20011001099965 and 20011001100001.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1250687568743 + ... + 1250687568758.

Almost surely, 2^{20011001100008} is an apocalyptic number.

It is an amenable number.

20011001100008 is a deficient number, since it is larger than the sum of its proper divisors (17509625962522).

20011001100008 is a wasteful number, since it uses less digits than its factorization.

20011001100008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2501375137507 (or 2501375137503 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

The spelling of 20011001100008 in words is "twenty trillion, eleven billion, one million, one hundred thousand, eight".