20351645106283 has 2 divisors, whose sum is σ = 20351645106284. Its totient is φ = 20351645106282.

The previous prime is 20351645106241. The next prime is 20351645106361. The reversal of 20351645106283 is 38260154615302.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20351645106283 - 2²⁵ = 20351611551851 is a prime.

It is not a weakly prime, because it can be changed into another prime (20351645176283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10175822553141 + 10175822553142.

It is an arithmetic number, because the mean of its divisors is an integer number (10175822553142).

Almost surely, 2^{20351645106283} is an apocalyptic number.

20351645106283 is a deficient number, since it is larger than the sum of its proper divisors (1).

20351645106283 is an equidigital number, since it uses as much as digits as its factorization.

20351645106283 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1036800, while the sum is 46.

The spelling of 20351645106283 in words is "twenty trillion, three hundred fifty-one billion, six hundred forty-five million, one hundred six thousand, two hundred eighty-three".