20003506776117 has 24 divisors (see below), whose sum is σ = 29144165766144. Its totient is φ = 13220352641664.

The previous prime is 20003506776031. The next prime is 20003506776119. The reversal of 20003506776117 is 71167760530002.

20003506776117 is a `hidden beast` number, since 2 + 0 + 0 + 0 + 3 + 506 + 77 + 61 + 17 = 666.

It is not a de Polignac number, because 20003506776117 - 2¹⁰ = 20003506775093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20003506776119) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5353828 + ... + 8286765.

It is an arithmetic number, because the mean of its divisors is an integer number (1214340240256).

Almost surely, 2^{20003506776117} is an apocalyptic number.

It is an amenable number.

20003506776117 is a deficient number, since it is larger than the sum of its proper divisors (9140658990027).

20003506776117 is a wasteful number, since it uses less digits than its factorization.

20003506776117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13642009 (or 13642006 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 45.

The spelling of 20003506776117 in words is "twenty trillion, three billion, five hundred six million, seven hundred seventy-six thousand, one hundred seventeen".