20511240011199 has 48 divisors (see below), whose sum is σ = 33896835707904. Its totient is φ = 11707903944000.

The previous prime is 20511240011167. The next prime is 20511240011201. The reversal of 20511240011199 is 99111004211502.

20511240011199 is a `hidden beast` number, since 2 + 0 + 51 + 1 + 2 + 400 + 11 + 199 = 666.

It is not a de Polignac number, because 20511240011199 - 2⁵ = 20511240011167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20511240011159) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 224979274 + ... + 225070424.

It is an arithmetic number, because the mean of its divisors is an integer number (706184077248).

Almost surely, 2^{20511240011199} is an apocalyptic number.

20511240011199 is a deficient number, since it is larger than the sum of its proper divisors (13385595696705).

20511240011199 is a wasteful number, since it uses less digits than its factorization.

20511240011199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95028 (or 95025 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 36.

The spelling of 20511240011199 in words is "twenty trillion, five hundred eleven billion, two hundred forty million, eleven thousand, one hundred ninety-nine".