20504566050351 has 16 divisors (see below), whose sum is σ = 27353982071808. Its totient is φ = 13662431921600.

The previous prime is 20504566050209. The next prime is 20504566050413. The reversal of 20504566050351 is 15305066540502.

It is a cyclic number.

It is not a de Polignac number, because 20504566050351 - 2⁹ = 20504566049839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20504566050751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53809171 + ... + 54188891.

It is an arithmetic number, because the mean of its divisors is an integer number (1709623879488).

Almost surely, 2^{20504566050351} is an apocalyptic number.

20504566050351 is a deficient number, since it is larger than the sum of its proper divisors (6849416021457).

20504566050351 is a wasteful number, since it uses less digits than its factorization.

20504566050351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389262.

The product of its (nonzero) digits is 540000, while the sum is 42.

The spelling of 20504566050351 in words is "twenty trillion, five hundred four billion, five hundred sixty-six million, fifty thousand, three hundred fifty-one".