20548744911 has 6 divisors (see below), whose sum is σ = 29681520440. Its totient is φ = 13699163268.

The previous prime is 20548744901. The next prime is 20548744921. The reversal of 20548744911 is 11944784502.

20548744911 is a `hidden beast` number, since 20 + 548 + 74 + 4 + 9 + 11 = 666.

It is an interprime number because it is at equal distance from previous prime (20548744901) and next prime (20548744921).

It is not a de Polignac number, because 20548744911 - 2¹⁵ = 20548712143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20548744901) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1141596931 + ... + 1141596948.

Almost surely, 2^20548744911 is an apocalyptic number.

20548744911 is a deficient number, since it is larger than the sum of its proper divisors (9132775529).

20548744911 is a wasteful number, since it uses less digits than its factorization.

20548744911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2283193885 (or 2283193882 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 20548744911 in words is "twenty billion, five hundred forty-eight million, seven hundred forty-four thousand, nine hundred eleven".