20508352168419 has 24 divisors (see below), whose sum is σ = 30253817018880. Its totient is φ = 13381176344688.

The previous prime is 20508352168333. The next prime is 20508352168433. The reversal of 20508352168419 is 91486125380502.

20508352168419 is a `hidden beast` number, since 2 + 0 + 5 + 0 + 8 + 3 + 5 + 216 + 8 + 419 = 666.

It is not a de Polignac number, because 20508352168419 - 2⁹ = 20508352167907 is a prime.

It is a super-2 number, since 2×20508352168419² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20508352168019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42707152 + ... + 43184690.

It is an arithmetic number, because the mean of its divisors is an integer number (1260575709120).

Almost surely, 2^{20508352168419} is an apocalyptic number.

20508352168419 is a deficient number, since it is larger than the sum of its proper divisors (9745464850461).

20508352168419 is a wasteful number, since it uses less digits than its factorization.

20508352168419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579119 (or 579116 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 54.

The spelling of 20508352168419 in words is "twenty trillion, five hundred eight billion, three hundred fifty-two million, one hundred sixty-eight thousand, four hundred nineteen".