20011000009976 has 8 divisors (see below), whose sum is σ = 37520625018720. Its totient is φ = 10005500004984.

The previous prime is 20011000009937. The next prime is 20011000009991. The reversal of 20011000009976 is 67990000011002.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1250687500616 + ... + 1250687500631.

It is an arithmetic number, because the mean of its divisors is an integer number (4690078127340).

Almost surely, 2^{20011000009976} is an apocalyptic number.

It is an amenable number.

20011000009976 is a deficient number, since it is larger than the sum of its proper divisors (17509625008744).

20011000009976 is a wasteful number, since it uses less digits than its factorization.

20011000009976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2501375001253 (or 2501375001249 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 35.

The spelling of 20011000009976 in words is "twenty trillion, eleven billion, nine thousand, nine hundred seventy-six".