20653345859233 has 2 divisors, whose sum is σ = 20653345859234. Its totient is φ = 20653345859232.

The previous prime is 20653345859227. The next prime is 20653345859257. The reversal of 20653345859233 is 33295854335602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19367190267489 + 1286155591744 = 4400817^2 + 1134088^2 .

It is a cyclic number.

It is not a de Polignac number, because 20653345859233 - 2³³ = 20644755924641 is a prime.

It is not a weakly prime, because it can be changed into another prime (20653345859273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10326672929616 + 10326672929617.

It is an arithmetic number, because the mean of its divisors is an integer number (10326672929617).

Almost surely, 2^{20653345859233} is an apocalyptic number.

It is an amenable number.

20653345859233 is a deficient number, since it is larger than the sum of its proper divisors (1).

20653345859233 is an equidigital number, since it uses as much as digits as its factorization.

20653345859233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984000, while the sum is 58.

The spelling of 20653345859233 in words is "twenty trillion, six hundred fifty-three billion, three hundred forty-five million, eight hundred fifty-nine thousand, two hundred thirty-three".