20554363005211 has 16 divisors (see below), whose sum is σ = 23505468172288. Its totient is φ = 17606951856000.

The previous prime is 20554363005203. The next prime is 20554363005257. The reversal of 20554363005211 is 11250036345502.

It is a cyclic number.

It is not a de Polignac number, because 20554363005211 - 2³ = 20554363005203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20554363005611) 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, 124073011 + ... + 124238563.

It is an arithmetic number, because the mean of its divisors is an integer number (1469091760768).

Almost surely, 2^{20554363005211} is an apocalyptic number.

20554363005211 is a deficient number, since it is larger than the sum of its proper divisors (2951105167077).

20554363005211 is a wasteful number, since it uses less digits than its factorization.

20554363005211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176602.

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 20554363005211 in words is "twenty trillion, five hundred fifty-four billion, three hundred sixty-three million, five thousand, two hundred eleven".